Question about Pentair 3hp Whisperflo Pool Pump In - Ground

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I have a Whiperflo 3hp pool pump. The water

I have a Whiperflo 3hp pool pump. The water pressure when the filter is clean is around 18lbs pressure. I noticed the last few days it is setting at about 12 lbs pressure. I see no air bubbles in the basket or from the poll area. I appears to be operating fine. Any ideas ? Usually I see air bubbles if it is a gasket issue. I thought about the air guage but that simple too simple an explanation. Thanks.

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There are a couple things that you will need to check when pool pumps start losing pressure. Air bubbles are definitely one step, but check these things as well. Check you impeller to see if there is a clog or obstruction. You pump strainer could also be clogged. It could be that your o-ring needs to be replaced also. Try these things, reprime the pump, and see if it maintains pressure.

Posted on Apr 26, 2011

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