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8. Installation of new replacement safety signs or labels
should be in accordance with the sign or label
manufacturer's recommended procedure.
Be sure all provisions for waste water disposal
meet applicable local, state or national code.
100 gals. or more of pool water will be
discharged during filter backwashing. Do not
discharge where water will cause flooding or
damage.
6.2 Backwashing
1. With filter pump off, set the backwash valve or
MPV handle to the "BACKWASH" position.
2. Open air release valve.
3. Stand clear of the filter, start the pump to circulate
the water backwards through the filter to the waste
line.
4. When a steady stream of water is expelled through
the air release valve, close the valve.
5. Run the pump until the backwash discharge water is
clear (repeat steps 1 thru 5 if required).
6. Switch the filter pump off.
7. Follow the procedure for coating the filter grids as
described in Section 4.2.
The pressure gauge is the primary indicator of
how the filter is operating. Maintain your
pressure gauge in good working order.
6.3 Pressure Gauge
1. During operation of the filtration system, check the
base of the pressure gauge for air or water leaks at
least once a week.
2. Keep the pressure gauge in good working order.
you suspect a problem with the gauge, Jandy
Products recommends you call a qualified service
technician to do any work on the filter/pump system.
10
CAUTION
CAUTION
SECTION 6. Maintenance
6.4 Cleaning Filter Grids with Water
1. Turn off the pump and switch of the circuit breaker
to the pump motor. Open the air release valve on top
of the filter tank. Close the filter isolation valves.
Remove the drain plug
2. Once all pressure has been relieved. Remove the
clamp ring and the filter lid. Inspect the o-ring for
cracks or tears replace if necessary.
3. Remove the filter grid assembly from the filter.
Follow instructions in Section 5.1.
4. Using a garden hose, thoroughly flush all
contaminates from the filter grid surfaces.
5. See Section 5.2 for reassembly of the filter tank and
filter grids.
6.5 Cleaning Filter Grids with
Muriatic Acid
1. Check with your local pool store or service company
to see if they offer filter grid de-scaling services.
Working with muriatic acid can be dangerous.
When cleaning filter grids always wear rubber
gloves and eye protection. Add acid to water, do
not add water to acid. Splashing or spilling acid
can cause severe personal injury and/or property
damage.
2. Stiffening of the filter grid fabric is caused by mineral
deposit buildup. It is usually due to deposits of either
magnesium, calcium, alkalines or carbonates. Removal
of these deposits may be accomplished by soaking the
filter grids in a plastic tub or pail with six (6) parts
water to one (1) part hydrochloric acid (muriatic acid).
3. Wear rubber gloves and eye protection when mixing
the solution, and handling or rinsing the filter grids.
4. Soak for at least four (4) hours.
5. Rinse the filter grids thoroughly with water.
If
6. See Sections 5.1 and 5.2 for reassembly of the filter
tank and filter grids.
SECTION 7. Winterizing
7.1 Winterizing
1. Turn off the pump and the circuit breakers.
WARNING