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If the water pressure decreases as the water is made
warmer, clean the cartridge filters.
Turn the water off at the main.
Remove the handle.
Hold the cartridge stop unit steady with a 36 mm
wrench.
Clean the cartridge filters
Clean the filters under running water. Use a soft tooth-
brush to remove stubborn deposits.
Lightly lubricate the cartridge o-rings with white
plumbers grease.
Install the thermostat cartridge.
Justify and install the handle.
Check valve maintenance
The check valve should be removed and
inspected yearly.
If the check valve is damaged, replace it.
Hold the stop unit steady while
removing or installing the thermo-
stat cartridge.
Failure to do so may result in
damage to the stop unit.
Use a 24 mm wrench to unscrew the thermostatic
cartridge from the stop unit.
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check valve
filters