Maintenance; Water Maintenance - Pentair Pool Products HIGH-RATE SAND FILTER SYSTEM Owner's Manual

Hazardous pressure. To avoid explo-
sion and possible severe or fatal injury, filter sys-
tem pressure must not exceed 50 PSI (345 kPa)
under any circumstances. NEVER test this filter
system with compressed air; never operate system
with water temperature above 95° F (35° C).
To prevent equipment damage and pos-
sible injury, turn pump OFF before changing valve
position.
NOTICE: Do not add chemicals directly into the pool
skimmer. Adding undiluted chemicals may damage
equipment and void warranty.
1. Open system valves and make sure pump is filled
with water.
Make sure pool water level is above skimmer or the
suction outlet.
2. With pump OFF, set valve to 'BACKWASH' posi-
tion.
3. Start pump, circulating water backwards through fil-
ter to waste.
4. Backwash until water runs clear (3-5 minutes).
5. Stop pump; set valve to 'RINSE' position.
6. Start pump; run pump for one minute.
7. Stop pump; set valve to 'FILTER' position.
8. Filter is now ready for service.
9. Record clean starting filter pressure gage reading
as a reference.
10. When pool is first filled, backwash once a day until
pool water is sparkling clear. After that, backwash
when pressure gage shows 5 to 7 PSI (34.5 to 48
kPa) higher than starting pressure.
Valve Setting
Purpose/Flow
WASTE
Lowers pool level or
drains pool; water
bypasses filter,
goes to waste.
Figure 9: Valve settings for startup. Stop
pump before changing valve position.
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MAINTENANCE

General:
• Wash outside of filter with a mild detergent and water.
Rinse off with hose.
NOTICE: DO NOT use solvents to clean filter; sol-
vents may damage plastic components in system.
• Inspect sand bed at least once a year to remove for-
eign material which has not been backwashed out of
system.
NOTICE: When the sand bed gets hard and crusty
on top, remove all the old sand and replace it with
new sand.
Weekly Pool Equipment Inspection:
1. Check pressure during operation. When pressure is
5 to 7 PSI (34.5 to 48 kPa) higher than initial operat-
ing pressure, backwash filter (see instructions under
"Startup/Operation").
2. Except during hot weather with heavy swimmer loads,
operating filter 6 to 12 hours per day should be suffi-
cient. Carefully monitor water chemical balance and fol-
low recommendations of your local pool professional.

Water Maintenance

• Keep water level at least two inches above bottom of
skimmer opening when system is not in operation.
Failure to do so can allow air to enter system, caus-
ing pump to lose prime and filter to entrap air.
• Maintain pH at 7.2 to 7.6 in pool.
To prevent damage to system components,
keep water temperature below 95° F (35° C) at
all times.
Vacuum Pool:
1. Fill vacuum hose by submerging in water from one
end to the other.
2. To vacuum, insert hose into skimmer suction mani-
fold or into vacuum line in pool wall. See instructions
provided by pool builder or pool manufacturer. Start
pump, making sure it is primed and pumping.
3. After vacuuming, clean pump trap to remove accu-
mulated debris, then check filter pressure gage. If
reading is 5 to 7 PSI (34.5 to 48 kPa) higher than ini-
tial operating pressure, backwash filter
Lower or Drain Pool
(See Figure 10, Page 10)
1. Turn pump 'OFF'; set valve handle to 'WASTE'.
2. Use vacuum cleaner hose and head.
3. Start pump; run until pool is lowered to desired level.
4. Turn pump 'OFF'; set valve handle to 'FILTER'.
5. Start pump.
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