If present, you can either use anything NON METALLIC – wood or plastic is the safest as it should be soft enough to avoid scratching the plates, yet strong enough to break up minor deposits. Step 3: Once the cell is removed from the plumbing, look down the center at the series of plates to see if there is a white chalky build up (calcium deposits). If the unions are too tight, a strap wrench may be useful as it gives a better grip yet won’t damage the cell housing or unions. Step 2: Loosen the unions on each end of the cell, they should only be hand tight.
Step 1: Deactivate the pool pump to stop water flow.
