(Performed by water lter service specialist)
1 Shut o feed water valve, close pressure tank valve if used.
2 Open puried water faucet to relieve pressure in the system. Remove power from the system.
3 Unplug tube from each membrane housing cap. Screw o the housing caps. Extract used
membranes from membrane housings and take note of their orientaon inside the housings.
4 Install new RO membranes in housings observing proper orientaon of each.
CAUTION! Do not remove plasc bag when installing membrane. Make a cut in the
head end of bag and push the membrane out of the bag into the housing. Do not touch
membrane surface with your hands.
5 Screw on membrane housing caps.
6 Plug tubes back in the housings.
7 Open feed valve. Restore power supply to the system.
8 Let the system run for 30 minutes to ush out membrane preservave. Then, close puried
water faucet and open pressure tank valve if used.
6.3. MEMBRANE REPLACEMENT
7. SANITIZATION
Sanizaon of the reverse osmosis system is recommended aer it has been in operaon for an
extended period (over 6 months) or when the system is to be shut down for 3 weeks or longer. It is
also advisable to sanize the system when replacing lters. It is recommended to use tablets based
on acve chlorine for sanizaon.
Sanizaon is performed by water lter service specialist.
1 Shut o feed water valve and tank valve if used.
2 Remove and discard the pre-lter and post-lter replacement elements.
3 Unscrew cap of RO element housing and remove RO element using needlenose pliers if
necessary. Put the membrane into a ght bag and store in refrigerator at +2...+5°C.
4 Screw back pre-lter sumps, screw on membrane housing cap, and connect the tube from
the faucet directly to the union tee without post-lters.
5 Put a chlorine tablet in the 1st sump. Fill the sump with water and screw on.
6 Aer 15 minutes, open the drinking water faucet and feed valve.
7 When water running from the faucet starts to smell like chlorine, close both the faucet and feed valve.
8 Leave the system for 2-3 hours.
9 Open clean water faucet and feed water valve and let water run unl bleach odor is gone.
10 Install all consumable parts back into the system. Open tank valve if used and feed water valve.
11 Drain water unl chlorine odor cannot be smelt.