Page 4 of 8
ISSM170T Rev F
WWW.HAYWARDPOOL.COM
USE ONLY HAYWARD GENUINE REPLACEMENT PARTS
INITIAL START-UP OF FILTER
1. Be sure correct amount of filter sand media is in tank and
that all connections have been made and are secure.
2. Depress Vari-Flo control valve handle and rotate to
BACKWASH* position. (To prevent damage to control valve
seal, always depress handle before turning.)
3.
Prime and start pump according to pump instructions (be
sure all suction and return lines are open), allowing the filter
tank to fill with water.
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 2 minutes. 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 8-10 PSI (0.55-0.69
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: 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 8-10 PSI (0.55-0.69 BAR) above start-up
(clean pressure):
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.
WASTE—
To bypass filter for draining or lowering water
level and for vacuuming heavy debris directly to waste.
RECIRCULATE
—Water
is recirculated through the pool
system, bypassing the filter.
CLOSED
—Shuts off flow from pump to filter.
VACUUMING—Vacuuming can be performed directly into
the filter. When vacuuming heavy debris loads, set valve
to WASTE position to bypass the filter and vacuum
directly out to waste.
WINTERIZING
1. Completely drain tank by unscrewing drain cap at
base of filter tank. Leave cap off during winter.
2. Depress Vari-Flo control valve handle and rotate so as
to set pointer on valve top between any two positions.
This will allow water to drain from the valve. Leave
valve in this "inactive" position.
3. Drain and winterize pump according to pump
instructions.
SERVICE
&
REPAIRS
Consult your local authorized
Sand Master
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.
*
NOTE: For new concrete or gunite pools, or where there is a large amount of
plaster dust or debris—start filter in FILTER position (not BACKWASH) to
prevent clogging of underdrain laterals.
