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Filter Change Instructions
1. Turn off the water supply to the system. Depress the red pressure release button on the top of the
filter housing to relieve system pressure. If your system was not equipped with a pressure relief
valve, leave open a nearby faucet. This will make removing the filter housing easier.
2. Unscrew the housing from the cap using the filter wrench included with your system, or a
commercially available "strap" type wrench.
3. Locate and remove the large o-ring using a small, clean flat head screw driver. Try not to remove
any of the lubricant. Set aside a clean, safe place.
4. Remove and discard old filter cartridge.
5. Scrub the housing and cap with warm water mixed with about 2 tablespoons of household bleach
using a sponge or soft rag. Wear rubber gloves. Rinse all parts very thoroughly!
6. Lubricate the o-ring with clean silicon grease if needed. DO NOT USE PETROLIUM JELLY.
Insert o-ring in grove and press into place. Make sure the o-ring is seated level.
7. Remove filter packaging and insert new filter cartridge into the housing, making sure that it slips
over the standpipe in the bottom of the housing.
8. Fit the bottom of the housing into the cap and hand tighten, then use the filter wrench to fit snug.
Do not over tighten.
9. Close any open valves. Turn on the water supply slowly to allow the system to fill with water.
Inspect carefully for leaks. If a leak is found, first remove the housing and inspect the o-ring to
ensure that it is seated properly. Then retighten.
10. Flush the system by turning on a few cold-water faucets. Allow the water to run until the air and
carbon has been purged. Water may be cloudy initially. New activated carbon filter cartridges may
contain loose carbon and air bubbles after installation.
Page 6
Preliminary Notes
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