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GENERAL INFORMATION
• Clean a new pool as well as possible before filling
pool and operating filter. Excess dirt and large particles
of foreign matter in the system can cause serious dam-
age to the filter and pump.
NEVER test this filter with compressed air.
Do not operate filter at water temperatures above
95°F (35°C).
NEVER operate this filter system at more than 50
pounds per square inch (50 PSI/345 kPa) pressure!
Plug system into electrically isolated, Ground Fault
Circuit Interrupter protected circuit ONLY!
• Clean a new pool as well as possible before filling
pool and operating filter. Excess dirt and large particles
of foreign matter in the system can cause serious dam-
age to the filter and pump.
• Keep pool water pH at recommended level (7.2 to 7.6)
to avoid irritation to eyes and skin.
• The Hi-Rate Sand Filter System is designed for use
with above ground swimming pools only.
• Use only #20 Silica sand with a screen mesh of .45 to
.55mm. Use of other sands will reduce filter perfor-
mance.
To reduce risk of electric shock, install
pump at least 10 feet from the inside wall of the pool.
Do not use an extension cord.
INSTALLATION
Trap to Pump Assembly:
Using four 5/16" cap screws, flat washers and lockwashers,
mount trap to pump body; be sure to install gasket be-
tween trap and pump body. Tighten cap screws to 80 inch-
lbs (92 cm-kg) torque; do not overtighten.
Filter Mount Must:
• Provide weather and freezing protection.
• Provide space and lighting for easy access for routine
maintenance. (See Table I and Figure 1, Page 4, for
space requirements.)
• Be on a reasonably level surface and provide adequate
drainage.
• Be as close to pool as possible to reduce line loss from
pipe friction.
• Be solid – level– rigid – vibration free.
• Be installed so that trap suction inlet is below pool
water level at all times. This allows pump to prime.
• Have adequate ventilation to prevent motor overheat-
ing.
All manuals and user guides at all-guides.com
Piping:
• Use teflon tape or Plasto-Joint Stik
• Do not damage union sealing surfaces and "O" Rings.
• Support pipe independently to prevent strains on filter
• Use 1-1/2 or 2" pipe to reduce pressure losses as
• Fittings restrict flow; for best efficiency use fewest pos-
• Keep piping tight and free of leaks: pump suction line
• When unions are provided, use as follows for leak free
Valves:
• For servicing filter system and for cleaning pump trap,
• A check valve installed between filter and heater will
• Use care before assembly not to damage union sealing
Wastewater:
• Be sure all provisions for waste water disposal meet
1
5
nections of plastic pipe and fittings except unions. DO
NOT use pipe compounds on plastic pipe; it will
cause the pipe to crack. Do not use sealant or tape on
unions – assemble them dry and hand tight.
and valve.
much as possible. If flex hose is used, use the type
with smooth internal walls.
sible fittings.
leaks may cause trapped air in filter tank or loss of
prime at pump; pump discharge line leaks may show
up as dampness or jets of water.
connections:
1. O-Ring and sealing surfaces must be clean.
2. Assemble hand tight only (no wrenches).
3. No pipe compound or teflon tape on unions.
install ball or gate valves
A. Between pump trap and pool skimmer, and
B. Between selector valve and return pipe to pool.
prevent hot water from backing up into filter and de-
forming internal components.
surfaces or O Ring.
applicable local, state or national codes. 100 gallons
(379 liters) or more of pool water will be discharged
during filter backwashing. Do not discharge where
water will cause flooding or damage.
Lake Chemical Co., Chicago, IL
1
on all male con-
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