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Check valve maintenance
The check valve should be removed and inspected yearly.
If the check valve is damaged, replace it.
check valve
Clean the cartridge filters
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.
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.
Clean the filters under running water. Use a soft tooth- brush to remove stubborn deposits.
Lightly lubricate the cartridge
Install the thermostat cartridge.
Justify and install the handle.
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