Installation Instructions

PREFILTER, POSTFILTER AND RO CARTRIDGE REPLACEMENT PROCEDURE, INCLUDING SANITIZATION

1Turn OFF the icemaker (if attached to the RO system).

2Wash your hands with anti-bacterial soap.

3 Turn off water supply to RO system.

4Turn on RO faucet. Drain tank (may take several minutes). Turn off RO faucet.

CAUTION:Failure to close the water supply valve or tank shut-off valve will cause water to spray or run when sumps are removed.

5Remove the sumps.

Be careful—sumps will be full of water.

Discard filters. Thoroughly wash sumps with dish soap. Thoroughly wipe inside of heads with a paper towel moistened with dish soap. Rinse well.

6Remove cap from RO cartridge housing (unscrew tubing first, on some models). Use pliers to remove the RO cartridge. Place in a clean plastic bag or discard if replacing. Thoroughly wipe inside of housing and cap with a paper towel or dish brush moistened with dish soap. Rinse well. Install RO cartridge housing cap.

NOTE: Failure to remove RO cartridge during sanitization will destroy the RO cartridge.

7 Install empty postfilter sump.

8Fill prefilter sump with water to within 1″

of O-ring. Add 2 oz. (4 Tbsp.) ordinary household bleach. Install prefilter sump.

9Turn on water supply. Open RO faucet until water begins to flow, then close. Allow system to fill for 1 minute.

10Open faucet and allow water to flow for

10 minutes. Close faucet for one minute more, then open and allow water to flow for another 10 minutes, or until bleach odor is gone. Turn off water supply again. Drain RO.

11 Remove sumps. Insert filters. Lubricate O-ring with food-grade silicone grease, if necessary. (Do not use petroleum jelly.) Tighten sumps securely.

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