Raypak RPSFP18 - Filter Cleaning Guidelines; Filter Backwash Procedure; Chemical Cleaning Advice; Filter Winterizing Precautions

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Cleaning
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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 reduced 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 your clean
lter’s pressure gauge reading.
Filter Backwash Procedure
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WARNING: To prevent equipment damage and
possible injury, always turn the pump o󰀨 before changing
valve position.
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WARNING: Do not unscrew the screws of the ange
clamp while the pump is running.
Perform the backwash operation as follows:
1. Turn the pump off.
2. Change the position of the multiport valve handle
from FILTER to BACKWASH
3. Power up the pump again. The water flow is
automatically reversed through the filter so the water
is directed from the bottom of the tank, up through the
sand, thereby flushing the trapped dirt and debris out
into the waste line.
4. Check through the visual sight glass on the multi-
function valve outlet. The duration of the backwash
operation will depend on how dirty your filter is.
Continuously check the sight glass to see when the
water becomes clear, after which the pump is turned
off.
5. Change the position of the multiport valve handle
from BACKWASH to RINSE.
6. Turn the pump back on. The water flow will now be
directed through the sand bed and then out through
the waste line. This will settle the sand bed properly
for normal operation.
7. Continue checking the sight glass until the water is
clear, usually about half the time of the backwash
cycle.
8. Turn the pump off.
9. Change the position of the multiport valve handle
from RINSE to FILTER.
10. Turn the pump on.
Chemical Cleaning
Algae load, calcication, sanitation, and other poor water
conditions will a󰀨ect the proper function and e󰀩ciency of
the lter. Follow local guidelines and pool professional
advice to optimize these other key facets of water quality
that the lter does not control, but is impacted by.
Filter Winterizing
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CAUTION: Allowing water to freeze in the system will
damage the system and cause potential water damage,
ooding and property damage.
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CAUTION: The Multiport Valve should be left in the
"Winterize" position during the shutdown season so
the rubber seal of the valve diverter has no pressure on
it. Failure to do so can damage the valve diverter seal
which can cause property damage from leaking water.
Figure 3. Multiport Valve Position Functions
WASTE
FILTER
BACKWASH
RINSE
WASTE
RECIRCULATE
CLOSED
WASTE WASTE
WASTE WASTE WASTE
IN FLOW
OUT FLOW
IN FLOW
OUT FLOW
IN FLOW
OUT FLOW
IN FLOW
OUT FLOW
IN FLOW
OUT FLOW
IN FLOW
OUT FLOW