Step 1: Put the HIM filter on bypass by closing the inlet and outlet bypass valves.
Step 2: Release the water pressure inside the Clack control valve. If you put the filter on bypass, you can do this
by pressing the REGEN button. This will allow the control valve to enter a backwash cycle and since the water is
turned off because the control valve is on bypass, it will release the pressure.
Step 3: Unscrew the injector cap and lift off. Loosen cap with pliers if necessary.
Step 4: Remove the screen and clean if fouled. The injector can be pried out with a small flat screwdriver. The
injector consists of a throat and a nozzle. Chemically clean the injector with vinegar or sodium bisulfite
(“RustOut or “RustRid” or ‘CLR” etc). The holes can be blown out with air.
NOTE:
Both pieces have small diameter holes that control the flow rates of water to insure that the proper
concentration of regenerate is used. Sharp objects, which can score the plastic, should not be used to clean the
injector. Scoring the injector or increasing the diameter of the hole could change the operating parameters of
the injector. Push the injector back firmly in place; replace the screen and hand tighten the injector cap.
Summary of Contents for Clack WS1
Page 4: ......
