Originally Posted by shenry4244
When running on own power, my water pump will periodically come on for on second without turning on a faucet. Is this something normal or something to worry about?
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Is this something to worry about? If you have a slow leak somewhere that will turn into a big leak, then, yes, you should worry about it.
The reason that the pump comes on is because the pump senses a loss of back pressure. Pump comes on and feels back pressure and then will shut off.
Why are you loosing 'back pressure'? could be almost any place that that is almost unnoticeable.
Just some guesses, around the pump, any air pocket , any facet, hot water release valve/drain, very slow toilet leak. None of these 'slow' leaks may never grow any larger for the life time that you own the unit. You may not or will not ever find the cause of the water pressure leak.
What I do is just shut the pump off and when I need water I will turn it on.