Whacking PVC with a piece of 2x4, not pressure treated, is pretty safe. Pressure treated seems a little harder, but still softer than a hammer. Or, use a piece of PVC pipe.
Al
Re: how to find blockage in recirculation loop
Whacking PVC with a piece of 2x4, not pressure treated, is pretty safe. Pressure treated seems a little harder, but still softer than a hammer. Or, use a piece of PVC pipe.
Al
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