7
(b)
Replacing CF2 Cartridge - Every 4-6 months
1)
Close supply valve and open faucet to release pressure in filter or press vent buttons on top of both heads.
2)
Turn right sump 1/8th turn to left and lower to remove carbon cartridge by twisting and gently pulling downwards.
Transfer cartridge and sump to sink and dump water.
3)
Insert new CF2 cartridge onto head boss with blue gasket facing up and replace and lock sump (see
Start Up
).
Open supply 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.
(c)
Sanitizing Your System
It is recommended to sanitize your system for general hygiene at least once a year when the pre-filter and the post filter
are to be changed.
Note:
This procedure involves some water spillage. Keep an absorbent towel handy to clean up. Use
sanitary rubber gloves for this procedure and read “warning” information on bleach container before using.
1.
Shut off the water to the unit by closing the supply valve and open the faucet to vent the pressure off
2.
Remove both cartridges from their respective sumps & set aside in your refrigerator (DO NOT FREEZE).
3.
Add ¼ cup of fresh unscented bleach to the first sump reattach both sumps to the unit.
4.
Open the supply valve and run some water through the system until you smell the bleach coming out of the faucet.
Turn off faucet immediately and let bleach stay in the system. Turn OFF the supply valve.
5.
After 4-6 hours, open sumps and dump the water.
6.
Reattach both filter cartridges to the system & flush for a few minutes before use.
(F) TROUBLESHOOTING
PROBLEM
SOLUTION
Sump is difficult to
remove
1)
Unit may still be under pressure. Close supply 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 using food grade silicone (Dow 111) or any other non-
petroleum lubricant or replace the seal
Leak at head 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
Leak at vent button
Vent O-ring is not seating properly. Press vent button several times to re-seat properly. If it
continues to leak, replace assembly (2505).
Water flow is slow out of
the faucet
Ceramic cartridge is dirty. See section E) Maintenance
Water drips from faucet
after turning faucet off
Replace faucet cartridge (1050-2). Call Rainfresh to order
Ceramic cartridge is
cracked or broken
Replace cartridge immediately. Broken or cracked cartridges are not under warranty
Bad water test
If the water from the UCS2 system tests positive for bacteria:
-
Inspect ceramic cartridge for cracks or breakage. Replace if necessary.
-
Sanitize the system. See “Sanitizing your system” under maintenance
