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NORMAL FILTER OPERATION
Set the dial valve to FILTER, and start the pump.
BACKWASH
Backwash the fi lter thoroughly at least once a week, and whenever the pressure
gauge reads 6 - 8 PSI (0,5 Bar) above normal.
1). Stop the pump.
2). Close the valve at the pump suction. (If equipped).
3). Set the dial valve to TEST.
4). Remove the cover from the hair and lint strainer. Lift out the basket and empty it.
Refi t the cover and strainer Ring-Lok
strainer Ring-Lok
TM
during operation.
5). Re-open the valve at the pump suction and re-start the pump with the dial valve
set at FILTER.
6). Once air in the system has been removed and a steady fl ow of water has
resumed, turn off the pump and change the dial valve to BACKWASH.
7). Re-start the pump and backwash for about THREE minutes, or until the back-
wash water is clear.
8). Stop the pump. If the dial valve is equipped with RINSE, set the dial valve to
RINSE. Re-start the pump and run for 20 seconds.
9). Stop the pump. Set the dial valve back to FILTER. Re-start the pump.
NOTE: Do not vacuum when in BACKWASH position.
VACUUMING THE POOL
LIGHT SOIL: set dial valve to FILTER. HEAVY SOIL: set dial valve to DRAIN.
DRAINING THE POOL
Use the fi lter pump to drain the pool, or lower the pool water level, by setting the
dial valve to DRAIN. This position allows the water to be pumped directly to waste
without passing through the tank. Use the DRAIN position for emptying the pool,
and also when using the vacuum cleaner to remove heavy dirt, soil, and sand from
the pool.
FIGURE 6 - Stand Alone Sand Filter Dimensions
RETURN
14-
A
MODEL
Inches (mm)
Inches (mm)
SFTM22
30
3 /4"
(781)
33
1 /4"
SFTM25
34" (864)
36
1 /2"
CLOSING DOWN AND WINTERIZING
Backwash the fi lter for fi ve minutes before closing down the pool for an extended
period. Consult your pool dealer for advice on winterizing your pool and equip-
ment if freezing temperatures occur in your locality. Follow his recommendations,
because his knowledge of your equipment makes him the best qualifi ed source
of information. Backwash the fi lter for at least thirty minutes before closing down
the pool for winterizing. This will clean the fi lter bed thoroughly (the original sand
TM
- hand-tighten only - do not re-tighten
INLET
SAND
LEVEL
1
/
" / 356 mm
2
B
C
D
Inches (mm)
Inches (mm)
(845)
37
1 /2"
(953)
22
1 /2"
(572)
"
(927)
40
3 /4"
(1035)
25
(635)
should last for several years depending on conditions). Where the fi lter system is
unprotected from frost, drain the tank and pump in the following manner. (Note that it
is NOT suffi cient to set the dial valve to WINTERIZE, because the tank and pump will
not empty unless the drain plugs are removed.)
1). Remove the drain cap located at the base of the fi lter tank. Should the water not
drain readily from the tank, dislodge any sand that may be blocking the drain hole, or
blow out the obstruction by running the pump for a short period. CAUTION: DO NOT
DAMAGE THE DRAIN NOZZLE.
2). Set the dial valve to WINTERIZE. This will help the draining process by allowing
air to enter the tank.
3). Unscrew the pressure gauge from the dial valve by using a wrench on the square
metal shank. Do not apply force to the case of the gauge. Store the gauge indoors
where it will not be mislaid.
4). Remove the drain plug(s) from the pump. Take the cover off the hair and lint
strainer and check that most of the water drains from the pump and strainer. Store
the pump and motor indoors, or protect them from the elements and extreme
temperatures. Have any repairs made during the off-season when the best service
is available - do not leave them until next season. If the electric motor requires
service or repairs, take or send it to the motor manufacturer's local service station,
as listed in the information supplied with the motor. Zodiac Pool Systems Canada,
Inc. does not undertake the service or repair of motors.
TROUBLE SHOOTING
SAND BACK TO POOL
Sand too smal; Flow too high; Sand bed calcifi ed; Broken laterals; Broken manifold;
Loose standpipe; Too much sand; Dial valve not engaged; Air accumulation in fi lter.
SAND OUT OF BACKWASH HOSE
No backwash adapter/orifi ce; Flow too high; Too much sand in tank.
INADEQUATE FILTERING
Dirty make-up water; Improper sand; Sand is low; Algae in fi lter; Excessive dirt in
pool; Calcifi ed sand bed; Heavy swimmer load; Flow rate too high/too low;
Backwashing cycle too short; Backwash adapter in wrong location; Backwash line
too small.
SHORT FILTER CYCLE
Dirty fi lter; Improper sand; Sand is low; Algae in fi lter; Excessive dirt in pool;
Calcifi ed sand bed; Heavy swimmer load; Flow rate too high or too low;
Backwashing cycle too short; Backwash adapter in wrong location; Channels low;
Backwashing cycle too short; Backwash adapter in wrong location; Channels in
sand.
FILTER LEAKS
Tank cracked; Drain plug not tight; Valve/tank O-Ring damaged.
DIAL VALVE LEAKS
Handle not properly engaged; Valve/tank O-Ring damaged; Valve cover O-Ring
damaged; Pressure gauge needs sealant.
ABNORMAL LOSS OF POOL WATER
Leak inside dial valve; Leakage from pool or piping.
HIGH PRESSURE IN FILTER
Dirty fi lter; Backwash adapter installed in return; Calcifi ed sand bed; Return lines too
small.
LOW PRESSURE IN FILTER
Dial valve incorrectly set; Pump running too slow (plugged); Air leakage into pump
suction.
NOTE: If the recommendations in this manual do not solve your particular
problem(s), please contact your local dealer for service.
WATER CHEMISTRY
A proper and consistent use of chemicals is necessary to maintain clean, sanitary
water, prevent a spread of germ infection and control the growth of algae which can
spoil the appearance and enjoyment of your pool or spa. Chlorine is the most
commonly used chemical to provide clean, sanitary water. Either dry or liquid
chlorine can be used which should be added daily as it is dissipated by dirt and
germs as well as by the sun and the wind. It is also important that the correct level
E
of acidity or alkalinity of the pool water be maintained. This is the pH of your pool
Inches (mm)
with pH 7.0 being neutral. Readings above pH 7.0 are alkaline and readings below
11
1 /2"
(318)
are acid. A desirable range is 7.2 to 7.4. Consult your local pool/spa dealer for
13
1 /2"
(343)
complete information on the proper application and use of chemicals.
FILTER MAINTENANCE
Filter tank and contents should not require attention other than backwashing,
provided water is kept in continuous chemical balance without heavy dosages of
corrosive chemicals.
SERVICE AND REPAIR PARTS
Refer all service to your local dealer as his knowledge of your equipment makes him
the best qualifi ed source of information. Order all repair parts through your dealer.
Give the following information when ordering repair parts: Unit nameplate date and
description of part.
6
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