S E R V I C I N G
Wash hands thoroughly before beginning.
A.
Close the inlet shut-off valve. Relieve the system pressure by turning on a faucet. Once the
pressure is relieved, depress the pressure relief buttons at the top of each housing to ensure there is
no pressure in the system.
B.
Unscrew the appropriate housing that contains the cartridge that needs replacing using the
provided wrench. When opening the housings, it is common for the O-ring to lift out of the groove,
and at times, stick to the housing head. Do not misplace the rubber O-ring.
C.
Remove the exhausted cartridge and discard.
D.
Clean the interior of the housing:
1.
Rinse out and fi ll approximately 1/3 full of water.
2.
Add two caps full of 5% household bleach (5% sodium hypochlorite) and scrub with a brush or
a sponge. If bleach is not available, wash thoroughly with soap and warm water.
3.
Rinse thoroughly.
E.
Insert new cartridge to housing.
F.
Lubricate the O-ring seal with a thin coat of petroleum jelly (Vaseline TM). Do not wipe the O-ring
clean of lubricant. This prevents the O-ring from “crawling” when tightening the housing to the head.
G.
Place the O-ring in the groove of the housing and press it down completely – all the way around the
housing.
H.
Each time a cartridge is changed, the plumbing should be fl ushed again. To fl ush the down-line
plumbing review “Flushing the system” steps on page 10.
BDC6000BB
Certifi ed Nanotechnology Whole House Purifi cation System
11
Hel neu st 57
