Water Main Repair Trainee Manual

Water Main Repair Trainee Manual
Trainee Manual
A111
CITY OF SASKATOON
Water and Sewer Section
Water Main Repair
Trainee Manual
Version # 1-3-3
CITY OF SASKATOON
Water Main Repair
Trainee Manual
© City of Saskatoon
Version # 1-3-3
Table of Contents
INTRODUCTION ....................................................... 1
PROCEDURAL OVERVIEW ................................... 1
METHOD AND TECHNIQUES ............................... 3
PRE-REPAIR ............................................................... 3
GENERAL EXCAVATION SAFETY ............................. 13
PREPARING FOR REPAIR........................................... 15
INSTALLING A REPAIR CLAMP ................................. 23
ATTACHING A SACRIFICIAL ANODE ........................ 28
REPLACING A SECTION OF PIPE ............................... 34
TRANSITION COUPLER INSTALLATION .................... 38
MAXI-FIT COUPLER INSTALLATION ........................ 39
INSTALLING ROBAR COUPLERS ............................... 42
POST-REPAIR ............................................................ 45
BACKFILL, GENERAL INFORMATION ....................... 48
RESOURCES REQUIRED ...................................... 55
PEOPLE ..................................................................... 55
EQUIPMENT / TOOLS ................................................ 55
MATERIAL ................................................................ 64
Version # 1-3-3
Water Main Repair Trainee Manual
Introduction
The objective of this manual is to train staff on how to repair a water main in a timely and efficient manner
while minimizing disruption in service and insuring the water main repair meets current standards. Should
substandard conditions of the peripheral infrastructure be identified, further renovations will be performed.
This manual only applies to the repair of the water main at the point of excavation. This procedure also lists
additional substandard infrastructure that may require renovation.
Procedural Overview
The Clearances and Locations Work Group will acquire clearances for all utilities, (Gas, power, water, sewer,
phone, cable, etc.), before beginning excavation at the request of the Supervisor IV. The Clearances and
Locations Work Group will provide the required location numbers, job numbers, drawings and forms to the
Supervisor IV as well as organize the removal of some site obstructions such as trees and poles. The Supervisor
IV and the Clearances and Locations Work Group representative will mark out the water and sewer lines. The
Supervisor IV will request that the Sign Shop and/or the Labourers install the required traffic control devices
and ensure they are installed.
Every effort must be made to notify the public affected by a water outage prior to shutting down a water
supply line. Before beginning the Supervisor IV will ensure that any underground utilities have been deenergized, if required. The Supervisor IV will coordinate, select and acquire all required equipment and
materials and deploy their crew to the job site. Before using the equipment the tandem axle truck and
excavator/backhoe operators must perform circle checks, log results and ensure that the regular maintenance
schedule for that equipment has been followed. The tandem axle truck operator will ensure that the trailers are
clean and in good working order and the water trailers are completely filled before storing. The tandem truck
operator will haul the emergency water, shoring and crew trailers, making sure to take the emergency water
trailer first and turn on its heater, if required.
The Supervisor IV will decide on the size and location of excavation and discuss with the excavator/backhoe
operator the best method for excavating. Before any work begins all staff must be wearing the safety equipment
required. Where possible, excavate parallel with the pipe being repaired. Consider the locations of other
underground utilities. Excavate the area around the water main break. The Labourers shall locate the
underground utilities by hand or with a feeling rod and communicate to the excavator/backhoe operator when
the operator nears their location. The Labourers shall inspect shoring before use. The Supervisor IV will
confirm that the shoring is safe and installation is in accordance with any regulations. Personnel must stay clear
when lifting and lowering shoring. The shoring is installed with the assistance of the excavator/backhoe in
accordance with manufactures instructions. Shoring must be placed in the excavation in such a manner as not
to disturb any underground services. Shoring must be extended to support trench walls and install end plates
installed if required.
Installed access/egress ladder must be left in place while any persons are in the excavation. Labourers shall
observe the trench walls for signs of collapse throughout repair. If at any time the bottom Labourer is in
danger, the top Labourer must immediately summon their exit from the excavation. The Labourers will ensure
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Water Main Repair Trainee Manual
the tools and crew trailer are clean and in good working order. The Labourers will disinfect tools and
equipment before use on the water main repair.
The bottom Labourer will expose the pipe, determine location and type of repair and prepare pipe for repair.
The top labour will assemble the required materials and pass them to the bottom Labourer. The repair clamp or
new pipe must be installed in accordance with training manual. The Supervisor IV will determine how much
pipe to replace if pipe replacement is required. A quickie saw is not recommended on asbestos cement pipes as
pipe containing asbestos will create dangerous airborne particles while cutting. A recognized dangerous goods
carrier must transport asbestos-cement pipe pieces over 5-kgs. Couplers without protective coatings must be
covered with Denso paste and tape. A 36lb anode must be attached to the existing metallic water main, one on
either end by means of Cadweld. For anode attachment the pipe must be filed to bare metal at point of weld
for proper adhesion. All anodes shall be placed in such a manner as to not interfere with compaction and to
follow manufactures recommendations. Before backfilling the cardboard anode cover must be wetted. A
Denso tape patch must be placed over the Cadweld. Couplers must be blocked securely. The bottom Labourer
will observe the new repair for leaks while the top Labourer energizes the main.
Always remove discarded pipe from excavation before backfilling. Support all utilities as required by their
owner’s specifications. Have inspectors from each utility confirm their backfill specifications have been met.
Ensure main and service connections are bedded to spring line with granular material and compacted. The
Supervisor IV insures backfill material meets the requirements. Soil and granular material above the pipe zone
must be compacted to a standard proctor density minimum of 98% and be free from frozen or substandard
backfill material. Non-shrink backfill must be used beneath concrete or brick. Final grade of all excavations
must be smooth and level. The top Labourer will operate hydrant and install the throttle valve and discharge
hose for hydrant flushing. The line shall be re-energized/filled. The Supervisor IV will perform or monitor the
performance of the water line flushing and water quality testing.
Driveways, road surfaces and sidewalks must be swept clean. The Supervisor IV will inspect the site for
cleanliness before leaving the site. All unnecessary barricading will be set off to the side of the road prior to
leaving the site The Supervisor IV will submit a plan of the closed valves to the Valve Supervisor. The
Supervisor IV will ensure that all the required forms and documentation are complete and submitted.
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Method and Techniques
Pre-Repair
As the Water Service Disruption Reports are
created, each request for repairs needs to be
followed through first by prioritizing them,
then submitting them to the Clearances and
Locations Work Group.
Notes:
City of Saskatoon - Water Service Disruption Report
Location: ______________________________________________________________
Memo #
WRR #: _________________
Call to Dispatch: _________ Time Dispatched: _________ Arrival Time: _________ Completion Time: _________
Crew Members: __________________; Date Initiated: ____________; Outage Notification Given: ____ Yes; ____ No;
Type of Interruption
Water Main: _____
Valve: _____;
Water Conn: _____
Hydrant: _____;
Curb Stop: ____; (M/S ___; P/S ___; C/S ___;)
Curb Box: Raise ____; Lower ____;
Primary Main: ____;
Private Leak: _____;
Primary Valve: ____;
Frozen Conn: _____;
Valves out of Service
Units Affected (Number without service)
Houses: ___; Comments: _______________________________________
Apartments: ___; Comments: ___________________________________
School: ___; Comments: ______________________________________
Business: ___; Type: ___________________________________________
Other: _______ _____________________________________________
____________________________________________________________
VALVES OPERATED
Valve
Location of Valve
GIS No.
Hydrants out of Service
Hydrant
Location of Hydrant
GIS No.
Off
YYMMDD
Crew
Time
Initials
Time
Initials
Off
YYMMDD
Crew
On
YYMMDD
Crew
Time
Initials
Time
Initials
On
YYMMDD
Crew
Connection drawings for: _______________________________________________________________________________
___________________________________________________________________________________________________
___________________________________________________________________________________________________
Excavation Obstructions:
Additional Information Required:
Tree: _____ Comments: ____________________________________________
Correlation Required: ______ Yes; ______ No;
Slow Leak: ______ Yes; ______ No;
Utility Pole: _____ Comments: _____________________________________
Hydro Excavate: _______ Yes; _______ No;
Fence: _____ Comments: __________________________________________
Washout Visible: _______ Yes; _______ No;
Vehicle: _____ Comments: _________________________________________
Pavement: ___; Concrete: ___; Paving Stone: ___; Blvd: ___:
Broke into Sanitary Main: ______ Yes; _____ No;
Other: ____________________________________________________ Broke into Storm Main: ______ Yes; ______ No;
Temporary Water Provisions:
Traffic Controls:
Detour Required: ______ Yes; ______ No;
Water Trailer: _______ (On Site); ________ (Arranged For);
Bus Route: ______ Yes; ______ No;
Temporary Connection: _______ (Installed); ________ (Arranged For);
From: _______________________; To: _________________________; Post for No Parking: _______ Yes; ______ No;
Fill-up: _______ (Time On); _______________ (Time Off); ________________
PROPERTY DAMAGE: Yes: _______; No ________;
OTHER REMARKS / OBSERVATIONS:
Figure 1 – Water Service Disruption Report.
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Section A of the Water Service Disruption
Report. Contains the general data, the type of
interruption, the units affected and all the
valves out of service.
Notes:
City of Saskatoon - Water Service Disruption Report
Location: ______________________________________________________________
Memo #
WRR #: _________________
Call to Dispatch: _________ Time Dispatched: _________ Arrival Time: _________ Completion Time: _________
Crew Members: __________________; Date Initiated: ____________; Outage Notification Given: ____ Yes; ____ No;
Type of Interruption
Units Affected (Number without service)
Water Main: _____ Valve: _____;
Houses: ___; Comments: _______________________________________
Water Conn: _____ Hydrant: _____;
Apartments: ___; Comments: ___________________________________
Curb Stop: ____; (M/S ___; P/S ___; C/S __School: ___; Comments: ______________________________________
Curb Box: Raise ____; Lower ____;
Business: ___; Type: ___________________________________________
Primary Main: ____; Private Leak: _____; Other: _______ _____________________________________________
Primary Valve: ____; Frozen Conn: _____; ____________________________________________________________
Valves out of Service
Valve
Off
Crew
On
Crew
VALVES OPERATED
Location of Valve
GIS No. YYMMDD
Time
Initials
Time
Initials
YYMMDD
Figure 2 - Section A of Water Service Disruption Report
Section B of the Water Service Disruption
Report contains hydrant, excavation,
temporary water, traffic controls and any
additional information.
Notes:
Hydrants out of Service
Location of Hydrant
Hydrant
GIS No.
Off
YYMMDD
Time
Crew
Initials
On
YYMMDD
Time
Crew
Initials
Connection drawings for: _______________________________________________________________________________
___________________________________________________________________________________________________
___________________________________________________________________________________________________
Excavation Obstructions:
Additional Information Required:
Tree: _____ Comments: __________________________________________ Correlation Required: ______ Yes; ______ No;
Utility Pole: _____ Comments: ____________________________________Slow Leak: ______ Yes; ______ No;
Fence: _____ Comments: ________________________________________ Hydro Excavate: _______ Yes; _______ No;
Vehicle: _____ Comments: _______________________________________ Washout Visible: _______ Yes; _______ No;
Pavement: ___; Concrete: ___; Paving Stone: ___; Blvd: ___:
Broke into Sanitary Main: ______ Yes; _____ No;
Other: _________________________________________________Broke into Storm Main: ______ Yes; ______ No;
Temporary Water Provisions:
Traffic Controls:
Detour Required: ______ Yes; ______ No;
Water Trailer: _______ (On Site); ________ (Arranged For);
Temporary Connection: _______ (Installed); ________ (Arranged For); Bus Route: ______ Yes; ______ No;
From: _______________________; To: ______________________Post for No Parking: _______ Yes; ______ No;
Fill-up: _______ (Time On); _______________ (Time Off); ________________
PROPERTY DAMAGE: Yes: _______; No ________;
OTHER REMARKS / OBSERVATIONS:
TWE 03/0401
Figure 3 - Section B of Water Services Disruption Report
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Water Main Repair Trainee Manual
The Clearances and Locations Work Group
will provide; drawings, utility locations,
location numbers, and any required forms. If
required the Clearances and Locations Work
Group will coordinate the removal of objects
obstructing the excavation like trees and
utility poles.
Notes:
Figure 4 - Clearance and Locations Work Group
The daily work sheet is created to provide
other departments with the location of the
Water & Sewer work being performed that
day.
DATE: Friday May 9 - 03
Water and Sewer Maintenance Section
PIECOWYE:W&SMT1
STATUS
LOCATION:
REPAIR TYPE:
Current 1006 Tiffin Crescent
2nd Massey Drive & Marr Avenue
Hold 175/303 Delaronde Road
PRIORITY
JOB #
Sanitary Connection MBL
Water Main
MP1
Repair C/B Lead
MP1
Loc:
ACTIVITY:
GL
SIGNING:
GIS
664
3112
146
3114
5-6500 05-270 S/S
5-6100 02-150 On Site
775
3079
5-6710 07-310 On Site
27126
5-6300 02-160 On Site
23535
UTL>LOC:
STAFFING:
Parker/Klassen
LABOURERS -
BACKHOE OPERATOR - Dmytrowich - 2343
Pingue
T/A OPERATORS -
Hold Arnhem St. & McNaughton Avenue Hydrant (McAvity)
MP2
243
3059
Hold Field House
Water Connection
MBL
49246
1724067
REPAIR TYPE:
PRIORITY
JOB #
Water Main
MP1
146
3115
5-6100 02-150
S/S
LABOURERS -
Sanitary Connection MBL
664
3108
5-6500 05-270
S/S
BACKHOE OPERATOR -
5-6410 02-170
Crew
:W&SMT2
STATUS
Notes:
LOCATION:
Hold Clarence Avenue - 8th St. - 9th St.
Hold 15 Moxon Crescent
A
Loc:
ACTIVITY:
GL
SIGNING:
GIS
UTL>LOC:
MBL
T/A OPERATORS -
MBL
MBL
:W&SMT3
STATUS
LOCATION:
Hold Dudley Street
REPAIR TYPE:
Cathodic Protection
PRIORITY
JOB #
Loc:
FMP
46806
1724067
ACTIVITY:
GL
5-6100 17-596
SIGNING:
GIS
N/A
MBL
MBL
49195
1724067
REPAIR TYPE:
PRIORITY
JOB #
Loc:
Hold Isabella Street / Eastlake Avenue
Repair C/B Lead
MBL
48959
1724067
5-6710 07-310
S/S
Hold Isabella Street / Eastlake Avenue
Valve (WPL)
MP2
146
3031
5-6200 02-150
S/S
:W&SMT4
B
T/A OPERATORS -
MBL
LOCATION:
STAFFING:
BACKHOE OPERATOR -
Cleanup Yard
STATUS
UTL>LOC:
LABOURERS -
MBL
Hold 8th Street Yard
STAFFING:
5-6100 02-150
ACTIVITY:
GL
N/A
SIGNING:
GIS
MBL
UTL>LOC:
STAFFING:
LABOURERS -
BACKHOE OPERATOR -
1168
T/A OPERATORS -
MBL
MBL
DAY OFF/EDO
Ross, Young, Maskwa & Crews, Olchove,
VACATION:
SICK:
OTHER:
Hilton, Swidzinski
ADDITIONAL STAFFING:
Collins - Medical
Loader - Cousins @ Landfill -
Priority Legend
(MP1) Maintenance Priority - (MBL) Maintenance Backlog - (MPS) Maintenance Program Support - (FMP) Funded Maintenance Program
Pending Water & Sewer Work
STATUS
LOCATION:
Hold Boychuck Dr. South of Taylor St.
Hold Boychuck Dr. South of Taylor St.
Hold 4200 Block Taylor Street
Hold 412 Avenue C South
Hold 213 Avenue I South
Hold 4th Avenue & 23th Street
Hold Ottawa Avenue / 20th Street
C
REPAIR TYPE:
PRIORITY
JOB #
Loc:
Storm MH F&C
MBL
760
3010
ACTIVITY:
SIGNING:
GIS
5-6620 07-310
GL
Crew
21925
Storm MH F&C
MBL
3010
5-6620 07-310
Crew
21924
Sanitary MH F&C
MBL
563
5-6620 05-260
Crew
8575
Curb Stop (C&S)
MP2
48237
1724067
5-6400 02-170
S/S
Curb Stop (C&S)
MP2
48150
1724067
5-6400 02-170
S/S
San Bev Top
MBL
573
3012
5-6620 05-260
S/S
3813
San Bev Top
FMP
573
3068
5-6620 05-260
S/S
3231
760
Figure 5 - Daily Work Sheet
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Section A shows the tasks for each
Supervisor IV. In this view status, location,
repair type, priority, GIS #, job #, location
#, activity #, and GL # are shown. The
Staff not at work are listed at the bottom of
section A.
Notes:
DATE: Friday May 9 - 03
Water and Sewer Maintenance Secti
PIECOWYE:W&SMT1
STATUS
LOCATION:
Current 1006 Tiffin Crescent
2nd Massey Drive & Marr Avenue
REPAIR TYPE:
PRIORITY
JOB #
Loc:
664
3112
ACTIVITY:
GL
146
3114
5-6500 05-270
5-6100 02-150
MP1
775
3079
5-6710 07-310
Hold Arnhem St. & McNaughton Avenue Hydrant (McAvity)
MP2
243
3059
5-6300 02-160
Hold Field House
Water Connection
MBL
49246
1724067
5-6410 02-170
REPAIR TYPE:
PRIORITY
JOB #
Loc:
Water Main
MP1
146
3115
5-6100 02-150
Sanitary Connection MBL
664
3108
5-6500 05-270
Hold 175/303 Delaronde Road
Sanitary Connection MBL
Water Main
MP1
Repair C/B Lead
:W&SMT2
STATUS
LOCATION:
Hold Clarence Avenue - 8th St. - 9th St.
Hold 15 Moxon Crescent
ACTIVITY:
GL
MBL
MBL
MBL
:W&SMT3
STATUS
LOCATION:
Hold Dudley Street
REPAIR TYPE:
PRIORITY
JOB #
Loc:
Cathodic Protection
FMP
46806
1724067
ACTIVITY:
5-6100 17-596
GL
5-6100 02-150
MBL
MBL
MBL
Hold 8th Street Yard
Cleanup Yard
MBL
49195
1724067
REPAIR TYPE:
PRIORITY
JOB #
Loc:
:W&SMT4
STATUS
LOCATION:
ACTIVITY:
GL
MBL
Hold Isabella Street / Eastlake Avenue
Repair C/B Lead
MBL
48959
1724067
5-6710 07-310
Hold Isabella Street / Eastlake Avenue
Valve (WPL)
MP2
146
3031
5-6200 02-150
MBL
MBL
DAY OFF/EDO
Ross, Young, Maskwa & Crews, Olchove,
VACATION:
Hilton, Swidzinski
SICK:
Collins - Medical
Priority Legend
(MP1) Maintenance Priority - (MBL) Maintenance Backlog - (MPS) Maintenance Program Support - (FMP) F
Figure 6 - Daily Work Sheet Section A
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Section B shows additional information on
signing, GIS#, utility locations, staffing and
comments.
Notes:
on
SIGNING:
GIS
UTL>LOC:
S/S
STAFFING:
COMMENTS:
Parker/Klassen
LABOURERS -
BACKHOE OPERATOR - Dmytrowich - 2343
On Site
On Site
27126
On Site
23535
Pingue
T/A OPERATORS -
Gravel required to complete
Crew
SIGNING:
GIS
UTL>LOC:
STAFFING:
S/S
LABOURERS -
S/S
BACKHOE OPERATOR -
COMMENTS:
No homes out!
T/A OPERATORS -
SIGNING:
GIS
UTL>LOC:
N/A
STAFFING:
COMMENTS:
LABOURERS BACKHOE OPERATOR T/A OPERATORS -
N/A
SIGNING:
GIS
UTL>LOC:
STAFFING:
COMMENTS:
LABOURERS -
S/S
BACKHOE OPERATOR -
S/S
1168
T/A OPERATORS -
OTHER:
ADDITIONAL STAFFING:
COMMENTS:
Loader - Cousins @ Landfill -
Funded Maintenance Program
Figure 7 - Daily Work Sheet Section B
Section C shows work pending.
Notes:
Pending Water & Sewer Work
STATUS
LOCATION:
REPAIR TYPE:
PRIORITY
JOB #
Loc:
Hold Boychuck Dr. South of Taylor St.
Storm MH F&C
MBL
760
3010
Hold Boychuck Dr. South of Taylor St.
Storm MH F&C
MBL
760
3010
Hold 4200 Block Taylor Street
Sanitary MH F&C
MBL
563
Hold 412 Avenue C South
Curb Stop (C&S)
MP2
48237
Hold 213 Avenue I South
ACTIVITY:
GL
SIGNING:
GIS
5-6620 07-310
Crew
21925
5-6620 07-310
Crew
21924
5-6620 05-260
Crew
8575
1724067
5-6400 02-170
S/S
Curb Stop (C&S)
MP2
48150
1724067
5-6400 02-170
S/S
Hold 4th Avenue & 23th Street
San Bev Top
MBL
573
3012
5-6620 05-260
S/S
3813
Hold Ottawa Avenue / 20th Street
San Bev Top
FMP
573
3068
5-6620 05-260
S/S
3231
Figure 8 - Daily Work Sheet Section C
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The Supervisor IV will pick up all materials
that can be transported with a ¾ ton truck
from Public Works stores. (For larger
material a truck hoist or tandem truck will be
used)
Notes:
Figure 9 - Yards Stores
Choose excavator/backhoe and shoring
types based on size of excavation and soil
condition.
Notes:
Figure 10 – Shoring on Trailer
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Upon arrival at the work site, a good spot for
the trailers will be determined in order to
keep them clear of the excavation site.
Notes:
Figure 11 - Trailer Location
Representatives from utility companies can
field locate their lines if required. All buried
and overhead utilities shall be identified and
marked prior to beginning an excavation.
The Clearances and Locations Work Group
representative, or the Supervisor IV will
mark the city owned utilities. Locations of
the utilities will be a determining factor in
performing the excavation. Notes:
APWA Colour Codes
Figure 12 - APWA Colour Codes
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Every effort should be made to cut the
asphalt or concrete with an earth saw
(winter), quickie saw or asphalt saw
(summer), prior to excavating.
Notes:
Figure 13 – Concrete Saw
Asphalt or concrete will be stripped,
separated and hauled away to the designated
reclamation site. Asphalt and concrete are to
be recycled.
Notes:
Figure 14 – Recycling
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Every effort will be made to notify the public
affected by a water outage. Emergency water
supply trailers and temporary hook ups are
options to consider when there is a water
outage. A generic notification letter may be
posted on apartments (front and rear doors)
where notifying all individuals affected is not
possible.
Notes:
Figure 15 - Emergency Water Supply Trailer
When excavating to repair a water main ,
ensure that the majority of the excavation is
on the opposite side of the sewer main, - if
possible.
Notes:
Figure 16 - Excavator/backhoe Excavating
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The trench will be sorted into salvageable
material (wet or dry), and non-salvageable
material. If stockpiling of salvageable material
on site is not a viable option, a dumpsite will
be used. The toe of the spoil piles must be a
minimum of 1m (3feet 4inches) from the
edge of the excavation.
Notes:
Figure 17 –Spoil Piles
While locating a buried utility deeper than
1.2meters (4feet), shoring shall be placed in
excavation prior to a worker probing for the
utility.
Notes:
Figure 18 - Feeling Rod
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Support buried utilities as required during
excavation.
Notes:
Gas Line
Gas Line Supported
from Above
Figure 19 - Supported Utility
General Excavation Safety
In the event of a natural gas line hit, the
machine shall be immediately turned off, as
the engine may ignite the gas, especially in
calm conditions.
Notes:
Figure 20 - Excavator/backhoe that struck gas line.
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Should a power line come to rest on the
equipment, do not exit the equipment. Exit
only when told it is safe to do so.
Notes:
Figure 21 - Truck contacted overhead power lines.
Don't get between excavator bucket and the
truck being loaded. Never stand under the
bucket of the excavator/backhoe. Keep
everyone in work area clear of the swing of
the turntable and reach of the
excavator/backhoe.
Danger Zone
Notes:
Figure 22 – Danger Zone
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No worker will enter a trench greater than
1.2m (4feet) in depth, without the installation
of a temporary protective structure.
Notes:
Figure 23 - Trench Cave-in
Preparing for Repair
Should an excess amount of water be
observed in the trench, install a submersible
pump.
Notes:
Figure 24 - Submersible Pump
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Make sure shoring and trailer, are clean and
in proper working order for transporting.
Shoring trailers shall not be used to transport
material unless designated for such use. Park
trailer where there are no overhead lines or
tree branches. Look for cracks on eyebolts
and chains. Ensure that tie down straps are in
good condition (Not frayed or torn).
Notes:
Figure 25 - Shoring on Trailer
Hook up chain appropriately so as not to
crowd lift or flexibility. Keep the chain short
when transporting the shoring from the
trailer to the excavation, to prevent shoring
from swinging.
Notes:
Figure 26 – Shoring Installation.
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Position the excavator/backhoe far enough
back so the shoring can be lifted and lowered
safely. Use tag lines whenever possible.
Naturally frozen soil is not considered safe
and therefore must be shored.
Notes:
Figure 27 – Shoring in Excavation..
Once the shoring is in the excavation the side
panels must be expanded hydraulically to be
tight against the excavation walls. Endplates
must be installed if the ends of the
excavation are not sloped.
Notes:
Figure 28 – Shoring with Endplates
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All tools must be disinfected prior to use on
a water main, especially if they have been
previously used on a sewer repair. Ensure
that the proper disinfectant applicator is
used.
Notes:
Figure 29 - Disinfectant Applicator
Clean off excess dirt with a rag and wire
brush prior to soaking with disinfectant. Soak
items with disinfectant solution (Min 5%
Sodium Hypo-chlorite solution), let soak for
a minimum of 7 seconds. Scrub item with a
clean rag, then rinse clean with disinfectant
solution. Let tools dry before use.
Notes:
Figure 30 – Disinfecting
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After shoring is in place, install and secure
the ladder in the excavation. Labourers must
wear all the required personal protective
equipment.
Notes:
Figure 31 – Labourer Entering Excavation
Three points of contact must be kept on the
ladder when in use.
Notes:
Point of
Contact
Point of
Contact
Point of
Contact
Figure 32 - Three Points of Contact
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Expose pipe by removing soil with tunnelling
tunneling shovel.
Notes:
Figure 33 - Excavating with tunnelling shovel
Pipe should be washed in order to inspect
condition of pipe and to determine what
method and materials will be used to
perform repairs.
Notes:
Figure 34 – Cleaning pipe to Identify break type
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For a split pipe, determine if a repair clamp
will cover corroded area. If corroded area is
too severe, pipe replacement should be
preformed.
Notes:
Figure 35 – Split in Pipe
Hole in pipe breaks occur due to corrosion
of the pipe. In most cases a repair clamp can
be used to make the repair.
Notes:
Figure 36 - Hole in Pipe
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Shear (Circular) pipe breaks occur due to
ground movement. Often a repair clamp can
be used to make the repair.
Notes:
Figure 37 - Shear Pipe Break
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Installing a Repair Clamp
After the soil has been removed from around
the pipe, pipe must be cleaned on each side of
the break with rasp or scraper.
Notes:
Figure 38 - Cleaning Pipe With a Rasp.
Thoroughly wash pipe of debris to ensure a
good seal between the repair clamp and pipe.
Notes:
Figure 39 - Cleaning Pipe With a Rag
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Repair clamps come in 300mm (12 inch),
400mm (16inch) or 600mm (24 inch) lengths.
Take repair clamp out of shipping box and
back off all nuts to the end of each stud.
Notes:
Figure 40 - Preparing Repair Clamp
Pull the two-piece clamp apart. Apply a
generous amount of pipe lubricant over the
entire gasket surface. This will allow the gasket
to slide smoothly over the pipe during
installation.
Lug Section
Notes:
Bolt Section
Figure 41 – Repair Clamp Sections
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Place the lug section of the clamp onto the
pipe ensuring that the tapered gasket ends are
not folded over. Slide the bolt section of the
clamp under the pipe.
Notes:
Figure 42 - Repair Clamp Lug Section
Grab the lifter bar on each side of the bolt
section. Gently spread and pull upwards until
they snap into place. There should be no
distortion or folds in the gaskets. The tapered
gasket ends are still free to move into position,
(in the slack below the pipe).
Notes:
Figure 43 - Repair Clamp Lifter Bar
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Uniformly run down the nuts on each side of
the clamp, ensuring that the joints between
sections are approximately equal when the
clamp lies snug, down on the pipe.
Notes:
Figure 44 – Run Down Nuts
Alternately tighten all nuts in uniform steps,
using the strong arm.
Notes:
Figure 45 - Tighten Bolts
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Tighten the bolts with a torque wrench to 75
– 80 ft-lbs. The clamp is now installed.
Notes:
Figure 46 - Torque Bolts
The dial at the top of the torque wrench
shows the torque in ft-lb.
Notes:
Figure 47 - Torque Wrench
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Install treated blocks snugly underneath the
repair clamp -use as many blocks as required.
Notes:
Figure 48 – Treated Block
Attaching a Sacrificial Anode
Metallic pipe requires a 36 lb sacrificial anode
to be installed. Robar couplers require a 24lb
anode. The anodes will be installed by means
of Cadweld.
Notes:
Figure 49 - 36lb Anode
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Prepare Pipe for Cadweld, by filing or
grinding the pipe to bare metal at the point of
anode wire attachment.
Notes:
Figure 50 - Filing Pipe
Prep Cadweld with charge.
Notes:
Figure 51 - Preparing Cadweld Charge
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Insert stripped anode wire into sleeve.
Notes:
Figure 52 - Sleeve on Anode Wire
Attach 36-lb. Sacrificial anode’s wire to pipe,
with the Cadweld connector.
Notes:
Figure 53 – Cadweld Connector
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The Cadweld charge is lit with an igniter. A
face shield and goggles must be worn when
igniting the Cadweld.
Notes:
Figure 54 – Lighting Cadweld
Ignite Charge
Notes:
Figure 55 - Cadweld lit
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Wait until the weld has cooled then gently tug
on the wire to check if it is attached.
Notes:
Figure 56 - Cadweld Completed
Apply a tar patch or mastic equivalent over
weld. Sacrificial anode is now installed
Notes:
Figure 57 - Denso Tape Patch
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In order for the anode to work, the cardboard
packaging must be wet. Depending on the
ground conditions, it can take several months
to a year before a dry anode will soak up
enough groundwater to work efficiently. In
order to allow the anodes to begin operating
sooner, it is standard practice to soak the
anodes with water before backfilling.
Notes:
Figure 58 - Anode
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Replacing a Section of Pipe
The failed section of pipe is cut from the
existing pipe using a quickie saw. Cut pipe
square. A face shield and goggles must be
worn when using the quickie saw, hydraulic
cutters or the angle grinder.
Notes:
Figure 59 - Quickie Saw
When cutting pipe, start at the bottom of pipe
and work your way to the top, allowing water
to drain.
Notes:
Figure 60 - Cutting Pipe
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Keep pipe wet while cutting to minimize
airborne Particles. Appropriate respiration Tile
cutters shall be used for A/C pipe. Keep pipe
wet while cutting to minimize airborne
Particles. Appropriate respiration equipment
must be used. A/C pieces under 5kgs must be
double bagged and labelled for transport to
the landfill. A dangerous goods carrier must
transport A/C pieces over 5kg, and 24hr
notice must be given to the landfill scale
operators before delivering the A/C pipe. It’s
recommended to go to the next joint when
replacing A/C pipe to avoid cutting all
together.
Notes:
Figure 61 – Tile Cutters
Hydraulic pipe cutters can be used on CI pipe.
Notes:
Figure 62 - Hydraulic Pipe Cutters
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After cutting both ends of failure, a crowbar
may be used to dislodge failed pipe from
existing bedding, being careful not to damage
ends of good pipe. Check both ends of cut
pipe for corrosion or cracks, which will
require removal before taking an overall
measurement.
Notes:
Figure 63 - Dislodging Pipe with Chain & Excavator/backhoe
The defective section of pipe is removed from
the excavation to make room for the
installation of the new valve. (Ensure that
labourer is out of the excavation when the
excavator/backhoe or truck hoist is removing
the failed valve).
Notes:
Figure 64 - Using Chain to Remove Pipe
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Take overall measurement. Be sure to subtract
12mm (½ inch) from overall measurement to
allow for easier installation of new pipe. Relay
measurement to top labourer.
Notes:
Figure 65 - Pipe Measurement
Cut the replacement pipe to the overall
measurement minus 12mm (1/2 inches). The
replacement pipe shall be PVC, unless other
wise stated.
Notes:
Figure 66 - Cutting New PVC Pipe
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Couplers are used to connect the existing and
replacement pipes. There a several different
types of couplers, Robar, Romac and Maxi-fit
to name a few.
Notes:
Figure 67 - Couplers and Clamps
Transition Coupler Installation
A transition coupler is available if required.
Straight, transition and reducing couplers are
used to make a non-restrained connection
between two pipes of the same nominal size
but with different outside diameters. An
example would be 100mm (4inch) PVC and
A/C pipe.
Notes:
Figure 68 - Transition Coupler
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Maxi-fit Coupler Installation
All Maxi-fits components are coated,
eliminating the need for further protection
such as on site wrapping.
Notes:
Figure 69 - Maxi-fit Couplers
The Maxi-fit coupler can be slipped over
either the existing pipe or on the replacement
pipe. The coupler is then centred over existing
and new pipe.
Notes:
Figure 70 - Maxi-fit Coupler on Pipe
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Couplers are assembled using bolts tightened
in the pattern shown The bolts of a Maxi-fit
coupler are then tightened with a 40-50 ft-lb
torque.
Notes:
Figure 71 - Bolt torque pattern.
Zinc anode Protecto caps are supplied with
this type of coupler. Protecto caps eliminate
the need for a mechanically attached anode on
the coupler. Protecto caps are threaded onto
the end of each bolt.
Notes:
Figure 72 - Protecto Caps
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If connecting to metallic pipe, a 36lb sacrificial
anode must be attached to the pipe, (Use the
same procedure as given in this manual).
Support coupler by snugly placing treated
block beneath it.
Notes:
Figure 73 - Maxi-fit Couplers
Replacement pipe and coupler must be
properly supported. Bedding material
(Crushed rock and/or base gravel) must be
placed underneath both pipe and coupler.
Both shall be covered with the same material.
Notes:
Figure 74 – Bedding Material
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Installing Robar Couplers
Robar couplers will require dismantling.
There are 3 main parts to a Robar coupler, the
top section called the collar, the black rubbers
called the gaskets, and middle section called
the sleeve.
Notes:
Figure 75 - Robar Coupler
Robar collar and gasket are sloped over the
existing pipe. Pipe lubricant can be used for
ease of installation.
Notes:
Figure 76 - Robar Coupler gasket
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Slip the other collar and gasket, and the sleeve
over the new pipe. Centre Center coupler
sleeve over the existing pipe and replacement
pipe stubs. Install the bolts into the two
collars.
Notes:
Figure 77 – Centre Coupler
Coupler bolts are assembled and tightened as
per Figure 71 - Bolt torque pattern. Torque
bolts with 70-80 ft-lbs.
Notes:
Figure 78 - Tightening Bolts
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After installation, couplers must be blocked
securely using treated wooden blocks.
Notes:
Figure 79 - Treated wooden Blocks
Robar couplers require a 24lb anode and
metallic pipe requires a 36lb anode. Attach
anodes as described in the anode installation
section of this manual.
Notes:
Figure 80 – Anodes
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Post-repair
Remove all hand tools from excavation, exit,
and remove ladder. Never throw tools out of
excavation. Clean tools prior to storing.
Notes:
Figure 81 - Worker exiting excavation
Disinfect throttle valve and hydrant port with
disinfectant solution. Attach throttle valve and
hose onto hydrant. Ensure throttle valve is
open and run hose to the storm manhole or
catch basin; alternately a diffuser can be used.
Notes:
Figure 82 - Disinfecting Throttle Valve
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Open the valve upstream of the repair to flush
the main past the repair. Air will be expelled
form the water main while it fills with water.
Open the valve slowly. Opening it too fast can
create water hammer, which can further
damage the water main.
Notes:
Figure 83 - Flushing Pipe
Test for turbidity and chlorine. Flush though
hydrant until turbidity and chlorine levels have
been reached. Take a water sample from the
hydrant with the water sample jar. Deliver
water sample to the water treatment plant for
bacteriological testing. Follow the procedures
in the water quality SOP.
Notes:
Figure 84 - Water Testing
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Turn the hydrant off, slowly. The water main
is now under pressure. Check the new repair
for leaks. Listen to the hydrant for sounds that
could indicate another break in the main.
Notes:
Figure 85 - Inspecting For Leaks
Excavator/backhoe operator removes shoring
from excavation, placing it on trailer. Ensure
all shoring equipment and its trailer have been
serviced and are ready for the next job. Keep
shoring clean. Keep shoring & trailer clean.
End plates should be stored in proper place
on trailer and be easily accessible.
Notes:
Figure 86 – Removal of shoring
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Backfill, General Information
If soil conditions at base of excavation are
saturated and/or unstable, remove unsuitable
material below pipe and replace with crushed
rock and/or granular material.
Notes:
Figure 87 - Saturated Soil
Cover services connection and mains with
150mm [6in.] of granular material and
compact. Use spoil material if suitable. If not,
bring in clean backfill material.
Notes:
Figure 88 – Backfill
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Non-shrink backfill shall be used when
concrete or brick will be replaced, for
example; curb boxes and hydrants. Leave
non-shrink backfill a minimum of
300mm(12inch) below grade.
Notes:
Figure 89 - Non-shrink backfill
Ensure utilities are backfilled according to the
specifications of the owner of the utility. A
representative from the utility may be required
to inspect and approve the bedding.
Notes:
Figure 90 - Backfilling with shovel
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Backfill material should be free from loam
[fertile material] sod, boulders, foreign material
and frozen lumps.
Notes:
Figure 91 - Backfill Material
Mechanical methods of compaction are
required. Select the method of compaction
based on suitability.
Notes:
Figure 92 – Compactor
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Handheld plate tampers are to be used for
compacting in the pipe zone, around
manholes etc. Backfill shall be placed in
150mm (6 inch) lifts.
Notes:
Figure 93 – Handheld plate tamper
Hydraulic tamper [excavator attachment]
cannot be used closer than 1m (3ft.) directly
above pipe or service. Backfill shall be placed
in 150mm (6 inch) lifts.
Notes:
Figure 94 - Hydraulic Tamper
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Vibratory roller packer must be used for larger
excavations. Backfill shall be placed in 150mm
(6 inch) lifts.
Notes:
Figure 95 - Vibrator Roller Packer
Bucket tamping is not an approved method of
compacting.
Notes:
Figure 96 - Tamping with the Excavator/backhoe
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Leave adequate room for asphalt or concrete
as per the Roadway Section’s instruction. If on
grass do not leave topsoil higher than existing
grade to accommodate turf.
Notes:
Figure 97 - Finished backfill
Before leaving the site any unnecessary traffic
control devices will be removed, as per traffic
control manual.
Notes:
Figure 98 - Road sign
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Others will perform site restoration.
Notes:
Figure 99 - Repaving an excavation
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Resources Required
People
1 - Supervisor IV
2 - Labourers
1 - Excavator/Backhoe operator
2 - Tandem axle truck operators
1 - Loader operator (as required)
Figure 100- Crew
Equipment / Tools
Figure 101 - Feeling rod
Figure 102 - Tunnelling Shovel
Notes:
Notes:
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Figure 103 - Shovels
Figure 104- Broom
Notes:
Notes:
Figure 105 - Scraper
Figure 106 - Rasp / File
Notes:
Notes:
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Figure 107 - Cordless drill
Figure 108 - Strong Arm
Notes:
Notes:
Figure 109 - Torque wrench
Notes:
Figure 110 - Cadwelder
Notes:
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Figure 111 - Sledge Hammer
Figure 112 - Pick Axe
Notes:
Notes:
Figure 114 - Disinfectant Sprayer
Figure 113 - Valve Key
Notes:
Notes:
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Figure 115 - Quickie Saw
Figure 116 - Tile Cutter
Notes:
Notes:
Figure 117 - Hydraulic Cutter
Figure 118 – Emergency Water Supply Trailer
Notes:
Notes:
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Figure 119 - Crew Trailer
Figure 120 – Excavator/backhoe
Notes:
Notes:
Figure 121 - Shoring & Trailer
Figure 122 – Truck
Notes:
Notes:
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Figure 123 - Front End Loader
Figure 124 - Hydrant Key
Notes:
Notes:
Figure 126 - Diffuser
Figure 125 - Hydrant Hose
Notes:
Notes:
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Figure 127 - Hydraulic Tamper [excavator
attachment]
Figure 128 - Vibrator Roller Packer
Notes:
Notes:
Figure 129 - Handheld Plate Tamper
Figure 130 - Vibratory Compactor
Notes:
Notes:
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Figure 131 - Chlorine Tester
Notes:
Figure 132 - Turbidity Meter
Notes:
Figure 133 – Asphalt/Concrete Saw
Notes:
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Material
Figure 134 - Robar Coupler
Figure 135 - Maxi-fit Coupler
Notes:
Notes:
Figure 136 - Repair Clamps
Figure 137 - PVC Pipes
Notes:
Notes:
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Figure 138 - 36lb Anode
Figure 139 - Anode wire sleeve
Notes:
Notes:
Figure 140 - Denso tape
Figure 141 - Denso Paste
Notes:
Notes:
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Figure 143 - Cadweld charge
Notes:
Figure 142 - Water sample Jar
Notes:
Figure 144 - Treated block
Figure 145 - Cleaning rags
Notes:
Notes:
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Figure 146 - Pipe Lubricant
Notes:
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Table of Figures
FIGURE 1 – WATER SERVICE DISRUPTION REPORT. ................................................................................................................................................................... 3
FIGURE 2 - SECTION A OF WATER SERVICE DISRUPTION REPORT............................................................................................................................................. 4
FIGURE 3 - SECTION B OF WATER SERVICES DISRUPTION REPORT ........................................................................................................................................... 4
FIGURE 4 - CLEARANCE AND LOCATIONS WORK GROUP ........................................................................................................................................................... 5
FIGURE 5 - DAILY WORK SHEET ................................................................................................................................................................................................. 5
FIGURE 6 - DAILY WORK SHEET SECTION A .............................................................................................................................................................................. 6
FIGURE 7 - DAILY WORK SHEET SECTION B .............................................................................................................................................................................. 7
FIGURE 8 - DAILY WORK SHEET SECTION C .............................................................................................................................................................................. 7
FIGURE 9 - YARDS STORES.......................................................................................................................................................................................................... 8
FIGURE 10 – SHORING ON TRAILER ............................................................................................................................................................................................ 8
FIGURE 11 - TRAILER LOCATION ................................................................................................................................................................................................ 9
FIGURE 12 - APWA COLOUR CODES .......................................................................................................................................................................................... 9
FIGURE 13 – CONCRETE SAW .................................................................................................................................................................................................... 10
FIGURE 14 – RECYCLING ........................................................................................................................................................................................................... 10
FIGURE 15 - EMERGENCY WATER SUPPLY TRAILER ................................................................................................................................................................ 11
FIGURE 16 - EXCAVATOR/BACKHOE EXCAVATING .................................................................................................................................................................. 11
FIGURE 17 –SPOIL PILES............................................................................................................................................................................................................ 12
FIGURE 18 - FEELING ROD ........................................................................................................................................................................................................ 12
FIGURE 19 - SUPPORTED UTILITY ............................................................................................................................................................................................. 13
FIGURE 20 - EXCAVATOR/BACKHOE THAT STRUCK GAS LINE. ................................................................................................................................................. 13
FIGURE 21 - TRUCK CONTACTED OVERHEAD POWER LINES. ................................................................................................................................................... 14
FIGURE 22 – DANGER ZONE ...................................................................................................................................................................................................... 14
FIGURE 23 - TRENCH CAVE-IN .................................................................................................................................................................................................. 15
FIGURE 24 - SUBMERSIBLE PUMP ............................................................................................................................................................................................. 15
FIGURE 25 - SHORING ON TRAILER ........................................................................................................................................................................................... 16
FIGURE 26 – SHORING INSTALLATION. ..................................................................................................................................................................................... 16
FIGURE 27 – SHORING IN EXCAVATION.. .................................................................................................................................................................................. 17
FIGURE 28 – SHORING WITH ENDPLATES.................................................................................................................................................................................. 17
FIGURE 29 - DISINFECTANT APPLICATOR ................................................................................................................................................................................. 18
FIGURE 30 – DISINFECTING ....................................................................................................................................................................................................... 18
FIGURE 31 – LABOURER ENTERING EXCAVATION ................................................................................................................................................................... 19
FIGURE 32 - THREE POINTS OF CONTACT ................................................................................................................................................................................. 19
FIGURE 33 - EXCAVATING WITH TUNNELLING SHOVEL ............................................................................................................................................................ 20
FIGURE 34 – CLEANING PIPE TO IDENTIFY BREAK TYPE ........................................................................................................................................................... 20
FIGURE 35 – SPLIT IN PIPE......................................................................................................................................................................................................... 21
FIGURE 36 - HOLE IN PIPE ......................................................................................................................................................................................................... 21
FIGURE 37 - SHEAR PIPE BREAK ............................................................................................................................................................................................... 22
FIGURE 38 - CLEANING PIPE WITH A RASP............................................................................................................................................................................... 23
FIGURE 39 - CLEANING PIPE WITH A RAG ................................................................................................................................................................................ 23
FIGURE 40 - PREPARING REPAIR CLAMP .................................................................................................................................................................................. 24
FIGURE 41 – REPAIR CLAMP SECTIONS .................................................................................................................................................................................... 24
FIGURE 42 - REPAIR CLAMP LUG SECTION ............................................................................................................................................................................... 25
FIGURE 43 - REPAIR CLAMP LIFTER BAR ................................................................................................................................................................................. 25
FIGURE 44 – RUN DOWN NUTS ................................................................................................................................................................................................. 26
FIGURE 45 - TIGHTEN BOLTS .................................................................................................................................................................................................... 26
FIGURE 46 - TORQUE BOLTS ..................................................................................................................................................................................................... 27
FIGURE 47 - TORQUE WRENCH ................................................................................................................................................................................................. 27
FIGURE 48 – TREATED BLOCK .................................................................................................................................................................................................. 28
FIGURE 49 - 36LB ANODE .......................................................................................................................................................................................................... 28
FIGURE 50 - FILING PIPE............................................................................................................................................................................................................ 29
FIGURE 51 - PREPARING CADWELD CHARGE............................................................................................................................................................................ 29
FIGURE 52 - SLEEVE ON ANODE WIRE ...................................................................................................................................................................................... 30
FIGURE 53 – CADWELD CONNECTOR ........................................................................................................................................................................................ 30
FIGURE 54 – LIGHTING CADWELD ............................................................................................................................................................................................ 31
FIGURE 55 - CADWELD LIT ........................................................................................................................................................................................................ 31
FIGURE 56 - CADWELD COMPLETED ......................................................................................................................................................................................... 32
FIGURE 57 - DENSO TAPE PATCH .............................................................................................................................................................................................. 32
FIGURE 58 - ANODE ................................................................................................................................................................................................................... 33
FIGURE 59 - QUICKIE SAW ........................................................................................................................................................................................................ 34
FIGURE 60 - CUTTING PIPE ........................................................................................................................................................................................................ 34
FIGURE 61 – TILE CUTTERS....................................................................................................................................................................................................... 35
FIGURE 62 - HYDRAULIC PIPE CUTTERS ................................................................................................................................................................................... 35
FIGURE 63 - DISLODGING PIPE WITH CHAIN & EXCAVATOR/BACKHOE .................................................................................................................................. 36
FIGURE 64 - USING CHAIN TO REMOVE PIPE ............................................................................................................................................................................ 36
FIGURE 65 - PIPE MEASUREMENT ............................................................................................................................................................................................. 37
FIGURE 66 - CUTTING NEW PVC PIPE ...................................................................................................................................................................................... 37
FIGURE 67 - COUPLERS AND CLAMPS ....................................................................................................................................................................................... 38
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FIGURE 68 - TRANSITION COUPLER .......................................................................................................................................................................................... 38
FIGURE 69 - MAXI-FIT COUPLERS ............................................................................................................................................................................................. 39
FIGURE 70 - MAXI-FIT COUPLER ON PIPE ................................................................................................................................................................................. 39
FIGURE 71 - BOLT TORQUE PATTERN. ....................................................................................................................................................................................... 40
FIGURE 72 - PROTECTO CAPS .................................................................................................................................................................................................... 40
FIGURE 73 - MAXI-FIT COUPLERS ............................................................................................................................................................................................. 41
FIGURE 74 – BEDDING MATERIAL ............................................................................................................................................................................................ 41
FIGURE 75 - ROBAR COUPLER................................................................................................................................................................................................... 42
FIGURE 76 - ROBAR COUPLER GASKET ..................................................................................................................................................................................... 42
FIGURE 77 – CENTRE COUPLER ................................................................................................................................................................................................ 43
FIGURE 78 - TIGHTENING BOLTS .............................................................................................................................................................................................. 43
FIGURE 79 - TREATED WOODEN BLOCKS.................................................................................................................................................................................. 44
FIGURE 80 – ANODES ................................................................................................................................................................................................................ 44
FIGURE 81 - WORKER EXITING EXCAVATION ........................................................................................................................................................................... 45
FIGURE 82 - DISINFECTING THROTTLE VALVE ......................................................................................................................................................................... 45
FIGURE 83 - FLUSHING PIPE ...................................................................................................................................................................................................... 46
FIGURE 84 - WATER TESTING ................................................................................................................................................................................................... 46
FIGURE 85 - INSPECTING FOR LEAKS ........................................................................................................................................................................................ 47
FIGURE 86 – REMOVAL OF SHORING ......................................................................................................................................................................................... 47
FIGURE 87 - SATURATED SOIL .................................................................................................................................................................................................. 48
FIGURE 88 – BACKFILL ............................................................................................................................................................................................................. 48
FIGURE 89 - NON-SHRINK BACKFILL ......................................................................................................................................................................................... 49
FIGURE 90 - BACKFILLING WITH SHOVEL ................................................................................................................................................................................. 49
FIGURE 91 - BACKFILL MATERIAL ............................................................................................................................................................................................ 50
FIGURE 92 – COMPACTOR ......................................................................................................................................................................................................... 50
FIGURE 93 – HANDHELD PLATE TAMPER .................................................................................................................................................................................. 51
FIGURE 94 - HYDRAULIC TAMPER ............................................................................................................................................................................................ 51
FIGURE 95 - VIBRATOR ROLLER PACKER ................................................................................................................................................................................. 52
FIGURE 96 - TAMPING WITH THE EXCAVATOR/BACKHOE ........................................................................................................................................................ 52
FIGURE 97 - FINISHED BACKFILL .............................................................................................................................................................................................. 53
FIGURE 98 - ROAD SIGN ............................................................................................................................................................................................................ 53
FIGURE 99 - REPAVING AN EXCAVATION .................................................................................................................................................................................. 54
FIGURE 100- CREW .................................................................................................................................................................................................................... 55
FIGURE 101 - FEELING ROD ....................................................................................................................................................................................................... 55
FIGURE 102 - TUNNELLING SHOVEL ......................................................................................................................................................................................... 55
FIGURE 103 - SHOVELS ............................................................................................................................................................................................................. 56
FIGURE 104- BROOM ................................................................................................................................................................................................................. 56
FIGURE 105 - SCRAPER .............................................................................................................................................................................................................. 56
FIGURE 106 - RASP / FILE .......................................................................................................................................................................................................... 56
FIGURE 107 - CORDLESS DRILL ................................................................................................................................................................................................. 57
FIGURE 108 - STRONG ARM ...................................................................................................................................................................................................... 57
FIGURE 109 - TORQUE WRENCH ................................................................................................................................................................................................ 57
FIGURE 110 - CADWELDER........................................................................................................................................................................................................ 57
FIGURE 111 - SLEDGE HAMMER................................................................................................................................................................................................ 58
FIGURE 112 - PICK AXE ............................................................................................................................................................................................................. 58
FIGURE 113 - VALVE KEY ......................................................................................................................................................................................................... 58
FIGURE 114 - DISINFECTANT SPRAYER..................................................................................................................................................................................... 58
FIGURE 115 - QUICKIE SAW ...................................................................................................................................................................................................... 59
FIGURE 116 - TILE CUTTER ....................................................................................................................................................................................................... 59
FIGURE 117 - HYDRAULIC CUTTER ........................................................................................................................................................................................... 59
FIGURE 118 – EMERGENCY WATER SUPPLY TRAILER ............................................................................................................................................................. 59
FIGURE 119 - CREW TRAILER.................................................................................................................................................................................................... 60
FIGURE 120 – EXCAVATOR/BACKHOE ...................................................................................................................................................................................... 60
FIGURE 121 - SHORING & TRAILER .......................................................................................................................................................................................... 60
FIGURE 122 – TRUCK ................................................................................................................................................................................................................ 60
FIGURE 123 - FRONT END LOADER ........................................................................................................................................................................................... 61
FIGURE 124 - HYDRANT KEY .................................................................................................................................................................................................... 61
FIGURE 125 - HYDRANT HOSE .................................................................................................................................................................................................. 61
FIGURE 126 - DIFFUSER ............................................................................................................................................................................................................. 61
FIGURE 127 - HYDRAULIC TAMPER [EXCAVATOR ATTACHMENT] ........................................................................................................................................... 62
FIGURE 128 - VIBRATOR ROLLER PACKER ............................................................................................................................................................................... 62
FIGURE 129 - HANDHELD PLATE TAMPER ................................................................................................................................................................................ 62
FIGURE 130 - VIBRATORY COMPACTOR ................................................................................................................................................................................... 62
FIGURE 131 - CHLORINE TESTER .............................................................................................................................................................................................. 63
FIGURE 132 - TURBIDITY METER .............................................................................................................................................................................................. 63
FIGURE 133 – ASPHALT/CONCRETE SAW ................................................................................................................................................................................. 63
FIGURE 134 - ROBAR COUPLER................................................................................................................................................................................................. 64
FIGURE 135 - MAXI-FIT COUPLER ............................................................................................................................................................................................. 64
FIGURE 136 - REPAIR CLAMPS .................................................................................................................................................................................................. 64
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FIGURE 137 - PVC PIPES ........................................................................................................................................................................................................... 64
FIGURE 138 - 36LB ANODE ........................................................................................................................................................................................................ 65
FIGURE 139 - ANODE WIRE SLEEVE .......................................................................................................................................................................................... 65
FIGURE 140 - DENSO TAPE ........................................................................................................................................................................................................ 65
FIGURE 141 - DENSO PASTE ...................................................................................................................................................................................................... 65
FIGURE 142 - WATER SAMPLE JAR............................................................................................................................................................................................ 66
FIGURE 143 - CADWELD CHARGE ............................................................................................................................................................................................. 66
FIGURE 144 - TREATED BLOCK ................................................................................................................................................................................................. 66
FIGURE 145 - CLEANING RAGS .................................................................................................................................................................................................. 66
FIGURE 146 - PIPE LUBRICANT ................................................................................................................................................................................................. 67
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Index
A
H
A/C pipe, 33
asphalt, 9
hand tools, 43
Hydraulic tamper, 49
B
M
Backfill, 48
Backhoe, 45, 53
Maxi fit, 37
Maxifit, 59
C
P
Caldweld, 27, 28
CI pipe, 32
Couplers, 38, 41
Pipe Soap, 62
R
Robar, 40, 41, 59
D
Denso Paste, 60
Denso tape, 60
S
sacrificial anode, 28, 30
shoring, 17, 45
Strong Arm, 54
E
excavation, 1, 17, 43, 45
V
G
Vibrator roller, 50
gaskets, 23
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