• Brush

• Bleach

• Towel

• Housing wrench

1. Clear away a workspace under the sink near the location of the Value Line Filter.
    

2. Turn off the water feeding the Value Line Filter, by closing the ball valve located on the water line, or by closing angle-stop feed water valve clockwise. To close the angle-stop, turn clockwise. If present, the angle-stop will be located on the wall under the kitchen sink in close proximity to the Value Line Filter. Either method will work.
    

3. Depressurize the system. Flip up the handle on the RO sink spigot so that it locks into place, and dispenses water until it no longer flows.  If you have successfully shut off the water this should occur within a few seconds. If water still continues to flow, repeat step 2. The system is now depressurized; continue to leave to RO sink spigot handle in the open position.
    

4. Unscrew housing using spanner wrench. NOTE: When opening filter housing to change cartridge, it is common for 0-ring/gasket to lift out of housing and stick to cap.
    

5. Remove used cartridge and discard. Make note of filter type and alignment. Rinse out housing and fill about 1/3 full with water. Add about 2 to 3 tablespoons of bleach and scrub thoroughly with brush or sponge. Rinse thoroughly.
    

6. Remove O-ring/gasket from sump and wipe groove and O-ring/gasket clean. Lubricate O-ring/gasket with a coating of clean silicone grease. DO NOT use Vaseline or petroleum based lubricant. Place O-ring/gasket back in place and press O-ring down into the groove with two fingers (or place gasket on rim of sump). NOTE: This step is important to ensure proper filter seal. Make sure the O-ring is seated level in the groove (or gasket is on rim of sump). CAUTION: If O-ring/gasket appears damaged or crimped it should be replaced at this time.
    

7. Insert a new cartridge of the same type and alignment into the sump making sure that it slips down over the sump standpipe.
    

8. Screw the sump onto the cap and tighten with canister wrench. Make sure cartridge slips over the cap standpipe.
    

9. Repeat for each filter.
    

10. Remount the Value Line Filter, and SLOWLY open the main water line to the Value Line Filter.

NOTE: An activated carbon filter may contain a small amount of carbon fines (very fine black powder) and a new cartridge, after installation, should be flushed with sufficient water to remove the fines before using the water.

IMPORTANT NOTICE: To prevent costly repairs or possible water damage we strongly recommend that the bowl or sump of all plastic housings be replaced every five years. If your sump has been in use for more that the recommended period, it should be replaced immediately. Be sure to date any new or replacement sump for future reference and indicate the next recommended replacement date.

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