Page 6
Valve Operation
The operation and the positions of valve settings are as follows:
Valve Settings Direction of Flow Through Valve
Filter (also during vacuuming) From pump down through valve, through sand
bed, up through stand pipe to valve and back
through pool return.
Back Wash From pump, through valve, down through stand
pipe, up through sand bed, and through valve to
waste.
Rinse Flow from pump, through valve, down through
sand bed, up through stand pipe, through valve
to waste. (Position also used for initial start-up
and leveling sand bed after Back-wash)
Waste From pump, through valve to waste. Also posi-
tion for lowering water level or assist in drain-
ing pool.
Closed From pump to valve without further circulation.
Prevents any flow to filter and pool.
Recirculate From pump through valve to pool. This position
bi-passes the filter and is used for circulation
of pool water only.
NOTE: Always “STOP” pump when changing selector valve position.
INITIAL START-UP
1. Make sure the correct amount of sand is in the filter tank.
2. Prime pump.
3. Set valve handle in BACK WASH position.
4. Start pump and operate in BACK WASH cycle for three (3) minutes. This will
purge the filter of excess fines in the sand.
5. Turn pump OFF and set valve handle to RINSE. Start pump and run for one (1)
minute.
6. Stop pump and set valve handle to FILTER. Restart pump. System is now operat-
ing on a normal FILTER cycle.
7. Adjust the valves in the skimmer and main drain lines (if provided) to achieve bal-
anced flow rates.
8. When a pool is filled initially, the filter may have to be BACK WASHED once a day
until the water becomes sparkling clear. From that point on, BACK WASH when
pressure gauge indicates 30 to 40 kPa higher than at starting pressure.
Operation
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