Drip Irrigation - Integrated Sustainable Solutions

Drip Irrigation - Integrated Sustainable Solutions
Drip Irrigation
1
Why Do We Water ?
We like to play in the mud.
It doesn’t
rain enough
in Idaho.
The weeds need all the
help they can get..
2
Why Do We Water ?
Our plants get thirsty.and
all the little microbes that
keep our soil healthy get
thirsty too.
3
Where Do We Want the Water ?
4
Where Do We Want the Water ?
Drip irrigation puts the water only where
it’s needed for your plants.
5
Where Don’t We Want the Water ?
On the
leaves.
Late blight
The dense canopy of tomatoes, potatoes etc can
become an incubator for fungus and other diseases
when it is kept moist by overhead watering.
6
Where Don’t We Want the Water ?
On the pathways.
7
Where Don’t We Want the Water ?
On the fence.
On the wall.
On the
patio.
8
Advantages of Drip Irrigation
• Reduces water use (33 to 50%).
• Cuts down on weed
germination and growth.
• Minimizes problems with
fungus and other diseases that
like high humidity
environments.
9
Advantages of Drip Irrigation
• No moving hoses or adjusting
sprinklers to compensate for
wind (in Idaho?).
• Easy to adjust the amount
delivered to individual plant
needs.
10
11
So, Let’s Get Started
12
Several Options
T-tape
Drip tubing
Soaker hose
Individual emitters
13
T-tape
14
Drip Tubing
15
Soaker Hose
16
Individual Emitters
17
T-tape
• Thin wall plastic tubing with built-in emitters
spaced every 8-12 inches.
• Lays flat when the water is off – easy
installation.
• When water is on water “drips” out of each
emitter.
• Water spreads out wetting a width of about 10
inches.
• Can be buried or lay on top of soil.
• Even water distribution along entire length.
18
T-tape
19
20
T tape advantages
• Easy to install
• Can be buried or lay on top of soil
• No emitter clogging due to hard water
deposits
• Easy to repair
• Lasts for years – we have tape that has
been in more than 5 years
• Inexpensive: ~15 cents per foot
21
Example – 10’ x 20’ plot
• Connect to faucet via garden hose
with shutoff valve.
• Timer, filter, pressure regulator are
options.
• ½ inch poly pipe or inexpensive
garden hose for header.
• ¼ inch “spaghetti” tubing to
connect header to individual Ttapes.
• Four 16’ lengths of T-tape.
22
Typical System - Supply
• Connect to garden
hose or faucet.
• Timer
• Filter
• Regulator (if water
pressure > 50psi)
23
Typical System - header
• ½ inch poly pipe
• Inexpensive garden hose
24
Typical System – Feeder Tubes
• 1/4 inch poly pipe –
spaghetti tubing connects each piece
of T-tape to the
header.
• Also used for splicing
and repair.
25
Typical System – Drip Tape
• 10 mil, emitters every 8 inches
• At 10 PSI delivers ~40 GPH per 100'.
26
27
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Assembly
• Lay out header hose.
• Lay out T-tape rows.
• Cut spaghetti tubing to connect
header to T-tape.
• Punch holes in header and insert
spaghetti tubes.
• Punch holes in T-tape and slide
in spaghetti tubes.
• Pinch off top ends of T-tape.
• Run water through T-tape to
flush.
• Pinch off bottom ends of T-tape.
• Hoe trench and bury T-tape
(optional).
29
30
Sharpened Phillips
screwdriver or a
pencil
Poke hole
in tubing
Slide spaghetti tubing
Into hole – it self-seals
31
Installation for Tomato Bed
32
33
Removal
and Storage
34
5 Zone Setup
35
Distribution Manifold
Metering valves
36
Repair and Modification
• Repair: cut out damaged section.
• Tie off each end.
• Punch hole for spaghetti tube in
each end.
• Insert spaghetti tube.
• Done
37
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Repair and Modification
• Option: buy special Ttape hose connectors.
39
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Cost – 10 x 20 plot
•
•
•
•
•
•
Header hose - $5
Spaghetti hose - $5
T-tape – 100 ft - $15
Filter - $6
Shut off valve - $2
Regulator - $8
Total: $41
41
Kits Available
Contains drip tubing and
individual emitters
~ $80
Dripworks.com
~ $60
Dripdepot.com
42
Other Drip Options
Drip Tubing
–
–
–
–
½ and 1/4 inch with same type emitters as T-tape
Not all are pressure compensating (limited length)
Easier to run in circles – around trees, in pots
More expensive
43
Other Drip Options
Soaker hose
– ½ inch hose made from recycled rubber
– Water seeps from whole length of hose
– Water delivery is uneven in longer runs, not a
pressure-compensating design
– With our well water it plugged up with mineral deposits
after a couple of years
– Twice as expensive as T-tape
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Individual Emitters
45
Summary
• Drip irrigation puts the water only where it’s
needed for your plants.
• Reduces water use by 33% to 50%.
• Cuts down on weed germination and growth.
• Minimizes problems with fungus and other
diseases that like high humidity environments.
• Makes watering easier.
• Makes it easy to automate your watering.
46
Resources
•
Peaceful Valley Farm Supply - has all the drip irrigation supplies for t-tape
installation. www.groworganic.com
•
DripWorks - Very comprehensive website with helpful pages including
“Getting Started with Drip”. www.dripworks.com
•
DripDepot – Comprehensive website, how-to videos www.dripdepot.com
•
PipeCo - 945 Pancheri Dr. Idaho Falls 523-5500
•
Rain for Rent - 3615 E. Ririe Hwy Idaho Falls 522-4500
•
Home Depot
•
Lowes
47
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