USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
Page 4 of 8
TOP MOUNT VALVE SAND FILTERS
ISVL40 Rev D
INITIAL START-UP OF FILTER
1.
Be sure correct amount of filter sand media is in tank (42
pounds of sand) and that all connections have been made
and are secure.
2.
Lift control valve handle and rotate to BACKWASH position.
(To prevent damage to control valve seal, always lift handle
before turning.) Lock valve handle into position.
3.
When all the valves are open in a flooded suction system
(water source above the pump, the pump basket should fill
with water. Otherwise, fill pump basket with water to prime
the pump. Tighten strainer cover hand tight. Start the pump
(be sure all suction and return lines are open), allowing the
filter tank to fill with water. NEVER RUN PUMP DRY
WARNING
: ALL SUCTION AND
DISCHARGE VALVES MUST BE OPEN WHEN
STARTING THE SYSTEM. FAILURE TO DO SO
COULD CAUSE SEVERE PERSONAL INJURY.
Once water flow is steady out the waste line, run the pump for at
least 1 minute. The initial back-washing of the filter is
recommended to remove any impurities or fine sand particles in
the sand media.
4.
Turn pump off and set valve to RINSE position. Start pump
and operate until water in sight glass is clear—about 1/2 to 1
minute. Turn pump off, set valve to FILTER position and restart
pump. Your filter is now operating in the normal filter mode,
filtering particles from the pool water.
5.
Adjust pool suction and return valves to achieve desired
flow. Check system and filter for water leaks and tighten
connections, bolts, nuts, as required.
6.
Note the initial pressure gauge reading when the filter is
clean. (It will vary from pool to pool depending upon the
pump and general piping system). As the filter removes dirt
and impurities from the pool water, the accumulation in the
filter will cause the pressure to rise and flow to diminish.
When the pressure gauge reading is 5 psi (0.34 BAR) higher
than the initial "clean" pressure you noted, it is time to
backwash (clean) the filter (see BACKWASH under Filter
Control Valve Functions.) Note: Cleaning should be done
when the total pressure reading is above 5 psi.
NOTE: During initial clean-up of the pool water it may be
necessary to backwash frequently due to the unusually
heavy initial dirt load in the water.
KEEP SAFETY LABELS IN GOOD CONDITION AND REPLACE IF
MISSING OR DAMAGED.
IMPORTANT: To prevent unnecessary strain on piping system
and valving, always shut off pump before switching Filter
Control Valve positions.
To prevent damage to the pump and filter and for proper
operation of the system, clean pump strainer and skimmer
baskets regularly.
FILTER CONTROL VALVE FUNCTIONS
FILTER—Set valve to FILTER for normal filtering. Also use for
regular vacuuming.
BACKWASH—For cleaning filter. When filter pressure gauge rises
above 5 psi.
Stop the pump, set valve to BACKWASH. Start pump and
backwash until water in sight glass is clear. Approximately 2
minutes or less depending on dirt accumulation. Proceed to
RINSE.
RINSE—After backwashing, with pump off, set valve to RINSE. Start
pump and operate for about 1/2 to 1 minute. This ensures that all
dirty water from backwashing is rinsed out of the filter to waste,
preventing possible return to the pool. Stop pump, set valve to
FILTER, and start pump for normal filtering.
CLOSED—Shuts off flow from pump to pool.
WINTERIZING
1.
Lift control valve handle and rotate so as to set pointer on
valve top between any two positions. Leave valve in this
“inactive" position.
2.
Remove valve from the filter body. Allow it to completely
drain. Set the valve in a dry place.
3.
Drain the water from the tank.
4.
Remove the strainer housing from the pump.
5.
Drain and winterize pump.
SERVICE & REPAIRS
Consult your local authorized
Hayward
dealer or service center. No
returns may be made directly to the factory without the expressed
authorization of Hayward Pool Products, Inc.
PLEASE REALIZE.
Pure, clear swimming pool water is a combination of two factors—
adequate filtration and proper water chemistry balance. One
without the other will not give the clean water you desire.
Your filter system is designed for continuous operation. However,
this is not necessary for most swimming pools. You can
determine your filter operation schedule based on your pool size
and usage. Be sure to operate your filtration system long enough
each day to obtain at least one complete turnover of your pool
water.
To properly sanitize your pool, maintain a free chlorine level of 1
to 3 ppm and a pH range of 7.2 to 7.6. Insufficient chlorine or an
out of balance pH level will permit algae and bacteria to grow in
your pool and make it difficult for your filter to properly clean the
pool water.
