WATTS Reduced Pressure Zone Assembly SS009 3"

Remove the relief valve assembly by following the preceding procedure.

Remove the retainer from the body bore.

Remove the check valve modules from the valve by hand or with a screwdriver.

Separate the check seats from the cage using the bayonet type locking arrangement.

Identify components for cleaning or replacement

NOTICE: No special tools are required to service assembly sizes 2½" to 3".

Detach the activation module from the flood sensor.

Remove the sensor from the relief valve.

Remove the four or six relief valve cover bolts while holding the cover down.

Lift the cover straight off, ensuring the stem and diaphragm assembly remain with the cover.

Check if the relief valve spring is free inside the body.

Is the relief valve seat clean or does it need removal for cleaning?

Does the relief valve diaphragm and/or disc need replacement?

Ensure the assembly is installed in an accessible location

Verify compliance with state and local codes for installation height above ground

Check for the presence of a strainer ahead of the assembly, unless on seldom-used lines

Close the downstream shutoff valve

Open the upstream shutoff valve slowly to fill the valve

Open the downstream shutoff valve slowly to fill the water supply system