Purifier for Concrete Pools

Purifier for Concrete Pools
Purifier for
Concrete Pools
Operating Manual
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Builders, leave this manual with the pool owner!
We ask you to take the time
to get familiar with this manual.
We believe the more you know, the more enjoyable and healthy your
family’s swimming experience will be – and the more you will reduce the
time, effort and cost of maintaining your pool. Pool owners who switch
from chemical programs to the Nature2 purification technology spend
less time maintaining their pools.
Capacity: up to 132,000 L
Dimensions: 405 x 241 x 292 mm
Ports: 38 mm (1.5 inch) FPT threaded connections, inlet and outlet
Weight: 2.6 kg
Circulation system flow rate: 95-303 L/min
Purifier flow rate: 38-68 L/min (internal bypass)
Maximum operating pressure: 173 kPa
Cartridge dimensions: 350 x 118 mm
Replacement cartridge: G35 up to 132,000 L
Important: The proper replacement cartridge model for your purifier is
indicated on the label located on the front of your unit.
Cartridge life: 6 months from the date of installation
Run time: 6 hours minimum
Warranty: 2 years (housing)
P.C.P. ACT REG NOs: Model NG: 24576 / Model PG: 25140
Every pool has its own characteristics of water type, amount of sunlight,
etc. Discuss with your dealer the right "recipe" of water management to fit
the particular circumstances of your pool and geographic climate.
This purifier is for concrete pools only.
Any other use voids manufacturer’s warranty.
Remember, your authorized Nature2 dealer can provide professional
Nature2 Compatibility
advice and service.
Do not use with the following:
• Copper-based algaecides
• Bromine or bromide chemicals
• Biguanides
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Bypass Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Balance the Water . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Low-Chlorine Recipe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Provide Filtration/Circulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Replacing the Nature 2 Purifier Cartridge . . . . . . . . . . . . . . . . . . . . . . . .5
Winterizing Your Pool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
1 Installation
If you decide to install the Nature2 Purifier yourself, follow these instructions. The
letters in parentheses refer to a diagram on page 5.
Under normal pump and filter pressure conditions for concrete pools, the flow rate
to the inlet side of the purifier is 95-303 L/min which will allow proper flow
through the cartridge.
Important: : If your pump system is designed to produce flow rates greater than
303 L/min (80 GPM) or if plumbing is greater than 38mm (1.5 in) ask your dealer
about installing in a bypass configuration.
Bypass Installation
This 38 mm (1.5 in) Nature2 Purifier system may need to be installed in bypass to
the filtration system if plumbing size is greater than 38 mm (1.5 in) diameter or if
flow rates are greater than 303 L/min or 80GPM.
The Nature2 Purifier is installed on a bypass loop after the filter and always before
a chemical dispenser, if equipped, as shown below.
If the Nature2 Purifier is to be installed below the water level of the pool,
precautions must be taken to prevent the pool from draining during installation
and during cartridge change. Valves should be installed to isolate the system for
these situations.
Equipment you will need:
• a set of shut-off valves or rubber winterizing line-plugs to use during
installation or cartridge replacement to prevent draining (used in step 4 below)
• a filter connector hose of the same diameter as the other hoses on your pool
equipment (used in step 6)
• two 38 mm (1.5 inch) male hose adapters wrapped with teflon tape
• two hose clamps
1 Decide where to install the Nature2 Purifier. It should be installed:
• on a concrete slab to support the weight of the vessel,
• after the filter on the main return to the pool,
• before or after the heater,
• before any chemical dispenser or the discharge of an off-line
chemical dispenser.
2 Hand-tighten both the hose adapters into the base of the Nature2 Purifier (F).
The purifier is now ready to be installed.
3 Run the pump with a clean filter and under normal operating conditions. It is
important to start with a clean filter.
4 Turn off the pump and totally isolate the equipment (to prevent draining the pool) by plugging all lines running from the pool to the equipment, closing
in-line valves, and/or using the winterizing line plugs to seal off the skimmer pipe
and all return inlets. You are now ready to insert the purifier into the pool’s lines.
5 Disconnect the hose on the outlet side of the filter. Connect it instead to the
outlet side of the purifier.
6 Install a new section of connector hose between the outlet side of the
filter and the inlet side of the purifier. Use the hose clamps to secure the two ends
of the new section of hose. The new installation should look like this:
Pool → Pump → Filter → Purifier → Pool.
7 Remove plugs or open all valves used to isolate the filter. Set the cap (C)
in place and screw on the locking ring (B) until it is snug. Do not overtighten the
cap. Check that all connections are secure.
Important: Do not install the Nature2 Cartridge (E) yet.
8 Turn on the pool’s pump, check for leaks and repair any leaks you find.
To create the bypass:
1 Install a “T” in the return line to allow water to divert to the Nature2
Purifier. This “T” is then connected to the inlet of the purifier.
2 Install a control valve in the return line after the first “T” and before the
second “T”.
3 Fully open any valves (including the control valve) that were closed
to isolate the purifier.
4 Start the pump allowing water to pass through the newly plumbed system.
The control valve in the return line between the two “T”s will control the flow
through the purifier.
Note: For flows in excess of 303 L/min or 80GPM with the Nature2 in bypass, do
not exceed a 10.3 kPa increase in filter backpressure. Once 10.3 kPa is reached in
this situation the flow is correct through the purifier.
5 Check the purifier for leaks and fix or replace any fittings.
6 Follow the start up procedures.
2 Balance the Water
To find out if your pool water is balanced: • take a water sample to your dealer to be tested regularly, or • ask your dealer to recommend a pool test kit for water balance.
Balance pool water before installing purifier cartridge.
• pH
• Total hardness
200-300 ppm
• Total alkalinity
80-120 ppm
Consult your Nature2 Dealer for specific water balance instructions.
Element: pH
If it’s too low:
The surface of your pool can become etched.
Metal parts in the pump and plumbing will corrode.
How to fix:
Add pH increaser.
If it’s too high:
“Scale” forms on the surface of your pool.
The water can become cloudy.
"Scale" forms on your pool equipment.
How to fix:
Add pH decreaser.
Water is less stable.
In plaster pools, the calcium is taken out of the plaster,
causing the surface to deteriorate.
How to fix:
Add calcium hardness increaser.
If it’s too high:
Rough, discolored deposits (“scale”) will form on the
pool surface and inside pool equipment.
How to fix:
Drain or dilute the pool water.
Consult your dealer.
If it’s too low:
It provides no buffer so that you constantly get fluctuating
pH readings, which can damage equipment and pool surfaces.
How to fix:
Use an alkalinity increaser.
If it’s too high:
White deposits (“scale”) form on the tile line.
The plaster on pool surface becomes rough or discolored.
The water becomes cloudy or milky white.
How to fix:
Add acid to bring alkalinity down.
Element: Calcium Hardness If it’s too low:
200-300 ppm
Element: Total Alkalinity
80-120 ppm
3 Start Up
Before starting up a new Nature2 Cartridge, clean debris and algae out of the pool and equipment.
Important: Do not install the new cartridge until the pool water is chemically balanced.
1 Install the cartridge after water is balanced.
2 Shock the pool to burn off contaminants and to activate the cartridge. Follow label instructions of shock product being used.
3 Run the circulating pump either:
• 24 hours a day for 4 days, maintaining 1-3 ppm free available chlorine, or
• 6 hours a day for 14 days, maintaining 1-3 ppm free available chlorine.
4 Let free available chlorine residual drop but not below a minimum of 0.6 ppm once start-up period is completed.
4 Follow the Recipe
Low-Chlorine Recipe
(0.6 ppm free available chlorine minimum)
Once the 4-day or 14-day start-up period is done, allow the free available chlorine residual to drop but not below
0.6 ppm, then:
• Nature2 Purifier
What to do:
Every day
Run pump and filter at least 6 hours every day.
• Chlorine granules, tablets, liquid or generator
Once a week
Balance pH and total alkalinity.
• pH and total alkalinity adjusting chemicals
Twice a week
Check chlorine residual, add chlorine to maintain a minimum of 0.6 ppm free
available chlorine.
As needed
• If water is hazy, shock. Follow product label instructions.
• After heavy use or rainstorm, shock is recommended.
• Add cyanuric acid (stabilizer) to maintain 50 ppm.
• Calcium hardness increaser, if needed
• Water test kit
• Cyanuric acid
5 Provide Filtration/Circulation
To manage:
You need to:
Follow the manufacturer’s directions for keeping the circulating pump in good working order and operate it at least six hours a day.
Consult your Nature2 dealer for optimum run times.
Check the pool’s filter periodically and clean it as recommended by the manufacturer.
Troubleshooting Guide
Consult your Nature2 Dealer for additional assistance.
What to look for
Cloudy water
Poor filtration
Slow filter turnover rates
Frequently caused by
improper start up. See
section on Start Up.
1 Backwash and clean filter.
2 Run filter for 24 hours.
3 Increase run time per day.
Algae growth
Hazy pool water; may have slightly
green appearance.
Shock water (with dealer’s guidance)
and brush pool walls.
Unbalanced water
1. High hardness
2. High TDS (total dissolved solids)
3. High pH
4. High total alkalinity
Balance the pool water
Green algae
Pea green color; attaches to pool walls;
sometimes colors the entire body of water
1 Check pH and adjust if necessary.
2 Shock water and brush pool walls.
3 Repeat steps 1 and 2 until algae is gone.
Black algae
Black spots on pool walls
Mustard algae
Yellow or brown film on steps or walls
Brush affected areas.
Shock water.
Add algaecide.
Vacuum pool.
Repeat steps 1 through 4 until algae is gone.
Note: Regular algaecide treatments are recommended for outdoor pools that experience persistent algae problems.
Do not use algae treatments containing either copper or sodium bromide.
Copper or iron from pool equipment
corrosion or water supply
Adjust pH and total alkalinity to ideal ranges.
Vigorously brush stained areas.
Add sequestrant.
Run filter.
Twelve hours later, shock the pool.
Test and balance water.
Test pool water for dissolved metals.
Iron or manganese from equipment
corrosion or water supply.
Manganese in water supply.
Metal tarnishing
High native mineral content in
water; unbalanced water
Clean with soft cloth and mild detergent.
Test water for minerals; use a sequestrant;
maintain water balance.
Crusty deposits on
pool surfaces
High pH and high total alkalinity
Adjust pH and total alkalinity to ideal ranges.
High TDS (total dissolved solids)
or high hardness levels
1 Replace a volume of pool water with water
low in calcium and dissolved solids.
2 Use sequestrant to prevent scale buildup if
high hardness levels are a continuing problem.
The purifier leaks
A. O-ring missing or improperly seated
No flow to purifier
Lubricate O-ring with Teflon or silicone lubricant.
Note: Do not use petroleum-based lubricants (will
void warranty). Be sure O-ring is seated properly
before securing housing cap.
B. Faulty plumbing
Repair source of leak in plumbing.
Dirty filter (one indication: pressure
55-69 kPa higher than normal)
Clean or backwash filter so operating pressure
is always within 48 kPa of a new filter.
Replacing the Nature2
Purifier Cartridge
Winterizing Your Pool
Use these steps as a guide. Consult your dealer for specific information on your area.
Use the month indicator ring (A) on the top of the unit to identify the date on which
Warm Climate
the cartridge should be replaced.
1 Reduce the number of hours the pump runs since the cooler weather
decreases the spread of algae and other pollutants.
A cartridge lasts six months from the date of installation under normal operating
To replace the cartridge:
2 There is no need to shock the pool during cool weather unless the water
becomes cloudy (as may occur after a winter storm). See Cloudy Water in
Troubleshooting section.
1 Shut off your pool’s pump and filter.
Cold Climate
2 Close any valves between the filter and pool to prevent draining the pool.
1 Check total alkalinity and pH of pool to make sure that they are in
proper balance.
3 Unscrew the locking ring (B) by twisting counterclockwise until the ring
and the cap are free of the housing base.
2 Vacuum the pool bottom to remove any debris or other potential contaminants.
4 Lift out the old cartridge.
3 Shock the pool to clear the water.
5 Insert the new cartridge.
4 Add a winter algaecide following manufacturer’s instructions.
6 Set the cap and locking ring in place and screw the ring clockwise until it
is snug. Do not overtighten.
7 Position the month indicator ring (A) on the cap so that the current month
is visible in the installation window.
8 Open any valves that were closed to isolate the Nature2 Purifier in step 2.
Important: Do not use a winter algaecide with copper in it. This will void the
Nature2 no-stain warranty.
5 Backwash the filter.
9 Restart your pool’s pump. Check for leaks and fix any leaking fittings.
6 Drain part of the pool water. The amount to drain varies from one part of
the country to another. Consult your dealer for advice.
10 Follow the start up procedures described on page 3.
7 Winterize the purifier as follows:
• Unscrew the locking ring (B) and remove cap from the purifier base.
• Remove the winter drain plug (G) and drain the water completely out of the base
of the purifier.
• Lift out the purifier cartridge and dispose of it.
• Set the cap O-ring (D), the cap and locking ring in place and screw it tight.
• Store the purifier with your pool equipment, indoors if possible.
8 Winterize the pipes with pool antifreeze following manufacturer’s instructions.
9 Drain the water out of all equipment (pump, filter, etc.).
10 Store all baskets, hoses and cleaning equipment, indoors if possible.
11 Cover the pool with a winter cover.
Month Indicator Ring
Locking Ring
Cap O-ring
Winter Drain Plug
Housing Warranty
The Nature2 Purifier you have purchased was manufactured with care and is warranted to be free of defects in materials and workmanship for 2 years from the date it was
installed. Your warranty registration card must be completed and mailed to Zodiac Pool Care, Inc. to establish your installation date. This warranty does not cover damage
caused by abuse, misuse, accidents or any alterations to the purifier. Report claims to your authorized Nature2 dealer. Zodiac Pool Care, Inc. reserves the right to replace
any purifier instead of repairing it.
Six-Month Pro-Rated Cartridge Warranty
Nature2 Purifier cartridges are warranted to be free of defects in materials and workmanship and to perform to your satisfaction for a period of six months from the date of
installation. This warranty does not cover damage caused by accident, misuse or alteration or by the use of any biguanide products, copper-based algaecides or any products
containing bromine or bromide-based chemicals. If the cartridge is defective or does not perform to your complete satisfaction for the entire six months, we will make prorate
rebate based on your actual period of use. Please consult this Owners Manual for proper use.
Non-Staining Warranty
Your Nature2 Purifier cartridge is warranted not to cause copper staining in your pool. This warranty requires only that you exercise reasonable care of your pool and keep
water in balance at all times, and not use a copper-based algaecide. This Nature2 Owners Manual will guide you as to how to maintain your pool properly when using the
Nature2 Purifier. This warranty does not cover discoloration to chromium fittings which may discolor slightly over time and are easily cleaned with a mild detergent.
There are no other warranties, expressed or implied. All incidental and consequential damages are excluded from the warranty except where state law is different. This
warranty gives you specific legal rights. You may have other rights which vary from province to province. Proof of purchase is required to make any claims on the above
warranties, so please keep your dated receipt.
Zodiac Pool Care Canada, Ltd.
2115 South Service Road West, Unit #3
Oakville, Ontario L6L 5W2
Nature2 is a registered trademark of Zodiac Pool Care, Inc.
© Copyright 2004 Zodiac Pool Care, Inc.
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