Instructions / Assembly
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INSTALLATION INSTRUCTIONS
5
A
B
6. NOTE: Disconnecting the Tubing from the Quick-Connect
Fittings. Routine maintenance and cartridge replacement
will not require that you disconnect the tubing from
the filter cap; however, tubing may be quickly and
easily removed from the fittings if necessary. First, turn
off the water supply to the filter and open faucet to
release pressure. (A) Then, simply depress the gray collar
around the inlet fitting of the housing (B) while pulling
the tubing with your other hand. Repeat for the outlet
fitting.
6
A
B
WHEN TO CHANGE THE CARTRIDGE
The life of the cartridge depends on the water volume used and
the substances in the water. Normally the cartridge should be
changed at intervals of 12 months or less. Replace the cartridge
sooner if the water pressure at the faucet begins to drop noticeably
or if you notice changes in the taste, color, or flow of the filtered
water.
NOTE: Certain types of harmless bacteria will attack cellulose
material. Cartridges containing cellulose may seem to disintegrate,
produce a “sewer” or “rotten egg” odor, or form a black
precipitate due to bacteria. If this happens, consult Pentair
Customer Service for advice or select a different cartridge.
FILTER CARTRIDGE REPLACEMENT
A) (1) Turn off water supply to filter and place a tray or towel
under the system to catch any water that spills during removal
of the filter cartridge. (2) Depress red pressure-relief button, or
open cold water faucet, then (3) unscrew and remove bottom
of filter housing (See Figure A).
NOTE: If turning off water supply to filter will also turn off
water supply to the rest of the home, be sure to fill a bucket of
water first to allow you to clean housing after it has
been removed.
A
1
2
3
B) (1) Locate and remove large O-ring. Wipe it clean of lubricant,
and set aside. (2) Discard used filter cartridge. Rinse out bottom
of filter housing and fill 1/3 full with water. Add 1 tablespoon
of bleach and scrub bottom of housing with nonabrasive
sponge or cloth. Rinse thoroughly. Lubricate O-ring with clean
silicone grease. Insert O-ring in groove and press into place.
NOTE: This step is important to ensure a proper housing seal.
Make certain the O-ring is seated level in the groove.
Insert new filter cartridge in bottom of housing. Single
gasket cartridges should be inserted in the housing with the
gasket end facing the threads of the housing. Cartridges with
tapered ends need to be installed with the open tapered end
toward the threads of the housing. (See Figure B for correct
installation).
B
2
1
C) (1) Screw bottom of housing onto the cap and hand-
tighten. DO NOT OVER-TIGHTEN. (2) Slowly turn on
the water supply to allow filter to fill with water, then
(3) press the red pressure-relief button on top of filter
to release trapped air. Check for leaks before leaving
installation.
NOTE: A drinking water cartridge may contain carbon
fines (very fine black powder). After installation, flush the
cartridge for 5 minutes to remove the fines before using
the water. It is recommended that you run the tap at least
20 seconds prior to using water for drinking or cooking
purposes.




