2) Turn sump 1/8th turn to left and lower to remove and at same time remove
ceramic cartridge by twisting and gently pulling downwards. Do not remove
cartridge by unscrewing from adaptor (2560). Transfer cartridge and sump to
sink and dump water.
3) To clean ceramic, (Note: Please wear rubber gloves) hold cartridge in palm of
hand with nozzle up and gently scrub entire surface with abrasive screen
cleaner (811-0) provided under running water. Do not allow water to enter
nozzle opening. DO NOT USE SOAP OR DETERGENTS. Scrubbing removes
trapped particulates along with part of the ceramic.
4) Insert ceramic cartridge with adaptor (2560) back into head boss (see Start Up). Replace sump and turn 1/8 turn to
right fully to stop (lock position). Note: Bottom of sump has guides to contain 1M cartridge. Sump will not lock
unless bottom of cartridge is between guides.
5) Open saddle valve to start water flow with faucet open until all trapped air has escaped. If air remains in ceramic
housing, turn off faucet and press top vent button until water level rises past sealing point on sump.
Replacing CF2 & LR1 Cartridges - Every 6 months
1) Close saddle valve by turning clockwise and open faucet to relieve pressure in filter. Press vent buttons on top of
both heads.
2) Remove right sump and lower and at same time remove carbon cartridge by twisting and gently pulling downwards.
Transfer cartridge and sump to sink and dump water.
3) Insert new cartridge onto head boss with blue gasket facing up and replace and lock sump (see Start Up). Open
saddle valve to start water flow.
4) Turn on faucet until trapped air has escaped. If air remains in housing, turn off faucet and press top vent button until
water level rises past sealing point on sump. Note: Some fines from carbon cartridge may be flushed onto ceramic
cartridge. These are harmless and are removed with next cleaning.
Replacing 1M Ceramic Cartridge - Every 12 months
1) Follow steps 1 & 2 in cartridge cleaning instructions above to remove sump and ceramic cartridge only.
2) Replace cartridge by twisting and pushing up gently on head boss (see Start Up). Replace and lock sump. Open
saddle valve to start water flow.
3) Turn on faucet until trapped air and carbon fines are flushed. If air remains in ceramic housing, turn off faucet and
press top vent button until water level rises past sealing point on sump.
(G) TROUBLESHOOTING
PROBLEM
Sump is difficult to
remove
Leak at head seal
Leak at vent button
Water flow is slow
Water drips from faucet
after turning faucet off
Ceramic cartridge is
cracked or broken
Bad water test
SOLUTION
1) Unit may still be under pressure. Close saddle valve and open the faucet to release
pressure
2) Head seal may be stuck. To break the seal, push up on the sump before turning to
unlock. Clean and lubricate or replace the seal
1) Seal may be dry or cracked due to age. If over 1 year old, replace.
2) Seal or seal seat may have debris. Wipe the seal and seat with a paper towel. Thinly
lubricate using food grade silicone (Dow 111) or any other non-petroleum lubricant and
re-install. If this doesn't work, replace head seal
Vent O-ring is not seating properly. Press vent button several times to re-seat properly. If it
continues to leak, replace assembly (2505).
Ceramic cartridge is dirty. See section E
Replace faucet cartridge (1050-2). Call Rainfresh to order
Replace cartridge immediately. Broken or cracked cartridges are not under warranty
If the water from the UCS3 system tests positive for bacteria:
-
Inspect ceramic cartridge for cracks or breakage. Replace if necessary.
-
Sanitize the system. See section E
7