Re: Submersible Pump Pressure Drop
Posted by Gary Slusser on December 10, 2002 at 11:33:57:
In response to Re: Submersible Pump Pressure Drop
: My submersible pump is set for 30/50 pounds at the pressure switch. The problem is that it turns on at
: 30 pounds, then turns off at 50 - immediately when it turns off, the pressure drops 10 pounds to 40. Is
: there some sort of check valve in the pump that isn't closing immediately when the pump turns off or
: could it be something else? Thanks for any advice...

Yes, all submersible pumps have a check valve in or on the outlet and either can fail. But, first check that the gauge and its nipple are not blocked with rust/dirt.

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