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3. Maintenance
Cartridge Replacement Schedule
1.
When the line pressure downstream of the filter
housing drops to 30 psi or below during system
operation, the cartridge(s) needs to be replaced.
Occasional dips below 30 psi and back are normal.
2.
For system backplate label for ordering informa-
tion for cartridge replacements.
3.
See below for Cartridge Changing Instructions.
4. Cartridge Changing Instructions
Step #1
Shut off inlet valve
. Push “Red” pressure relief button
located
at left end of SMF filter system to relieve pressure until no more
water comes out. Grasp filter cartridge, turn counter-clockwise 1/4
turn (when viewed from bottom) and pull downward about 1 1/2” to
remove the filter cartridge. Properly dispose of old cartridge.
Step #2
Remove and discard the “Red” sanitary cap from the top of the new
cartridge. Be sure to apply sufficient lubrication (supplied) to the
O-Rings. Align ear on cartridge with notch in filter head and push
upwards to insert. Be sure to push cartridge all the way in! Turn car-
tridge clockwise (when viewed from bottom) until a definite stop is felt
and cartridge is sealed. Hand tight is sufficient. Turn on inlet valve
Flush for one minute.
It is recommended that the cartridge be changed at least yearly, when
pressure drops significantly, or when bad tastes and/or odors return.
See page 1 or system backplate label for proper replacement cartridge
part number.
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5
6
Lubricate O-Rings
