8
4. START-UP
NOTE: During initial clean-up of the pool water it may
be necessary to backwash more frequently due to a
possibly unusually heavy initial dirt load in the water.
AA
WARNING: Always turn the pump o before
changing valve positions. Changing valve positions
while the pump is running can damage the control valve,
which may cause serious injury or property damage.
1. Make sure the correct amount of filter media (specified
sand) is put into the tank and that all connections
have been connected and secured.
2. Depress the multiport valve handle and rotate it to
the BACKWASH position. Always depress the valve
handle before turning it to prevent damage to the
multiport valve seal.
3. Prime and start the pump according to the pump
instructions. Always depress the valve handle before
turning it to prevent damage to the multiport valve
seal. Once water is flowing out of the waste line, run
the pump for at least 1 minute. An initial backwash of
the filter is recommended to remove any impurities or
fine sand particles in the sand media.
4. Turn the pump off and set the multiport valve to RINSE
position. Start the pump and operate it until water in
the view glass is clear, about 1/2 to 1 minute. Turn
the pump off and set the valve to FILTER position
and restart the pump. The filter is now operating in
the normal filter mode filtering dirt 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 and 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. Over time, as
the filter removes dirt and impurities from the pool
water, the accumulation of dirt in the filter will cause
the pressure to rise and diminish the water flow. When
the pressure gauge reading is 8-10 PSI higher than
the initial "clean" pressure it started with, it is time to
backwash the filter (see Filter Backwash Procedure).
5. GENERAL MAINTENANCE
NOTE: It is essential to set up a regular schedule to
clean the sand lter by BACKWASHING and RINSING to
provide clean, safe, and healthy swimming water. The
time between cleans and the length of cleaning time will
depend on size of pool, usage, and other environmental
conditions. Consult your local pool professional to work
out a program that best suits your pool.
It is important to maintain a regular service schedule
program with pool equipment to ensure the best operation
and longest lasting results. Regular maintenance can
identify any potential issue early and save on expensive
maintenance at a later date. See Table B.
Filter and Control Valve Functions
Information is provided in Figure 3 and Table C for using
the control valve to regulate all the lter functions.
Cleaning
AA
WARNING: Failure to operate your lter system
or inadequate ltration can cause poor water clarity
obstructing visibility in your pool. Poor water clarity may
obscure objects in the water which, while swimming and
diving, could cause serious injury or death. Never swim
in a pool with poor water clarity.
Cleaning your lter will give you better quality water
that is clean, clear, and safe for swimming. It is highly
recommended to clean on a regular basis. Monitor the
pressure gauge and to switch on BACKWASH when an
increase of 8-10 PSI is noted compared to the pressure
gauge reading when the lter is clean.
Filter Backwash Procedure
AA
WARNING: To prevent equipment damage and
possible injury, always turn pump o before changing
valve position.
Perform the backwash operation as follows:
1. Turn off the pump.
2. Change the position of the multiport valve handle
from FILTER to BACKWASH
C
A
Figure 2. Dimensions
CONTROLLED COPY approved for factory use on 4/16/2020. RAYPAK PROPRIETARY AND CONFIDENTIAL INFORMATION . Approval signatures on file in Engineering.
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