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Bob F Bob F is offline
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Default Water pressure pump keeps turning on

On 6/5/2021 2:56 PM, dan wrote:
On Sat, 5 Jun 2021 15:36:17 -0400, Tekkie© wrote:
Maybe the pump overheated and went off on thermal and it took the time to
recover?


That's probably what is finally shutting off the pressure pump.
I think the pump maybe isn't shutting off except when it actually overheats.
Maybe heat is also why the plastic 1-inch plug came out with threads intact.

I swapped the weeping brass tapered 1-inch plug with the black metal plug.
Surprisingly the Teflon tape was GONE from the threads upon inspection.
I've taken plumbing apart and the Teflon tape usually remained behind.
I think these tapered pressure fits are so tight that tape is too thick.

This time around I used only 1 tight wrap of Teflon wound really tightly.
Put plumbers goop on top of the Teflon & tightened with an 18" pipe wrench.
No more water seepage but the pump still ran forever without ever stopping.

I'm hearing a hissing sound but only when the pump is running.
That makes it hard to tell where that hissing is coming from.
There is no hissing nor leak of pressure overnight with the pump turned off.

There is a pressure gauge on the pump but it's stuck at one setting forever.
Looks like it's 0 to 100 psi and less than 1/2 inch threads - maybe 3/8"?
Are these gauges special for water pressure or can air gauges work too?

BTW, pressure at the bladder was 22 psi with no water pressure.
Within five minutes it was between 20 and 30 psi with good water pressure.
But after 1/2 hour it never exceeded 52psi with the pump always running.

I lost some air constantly testing the bladder.
Anyone know what I should pressurize the bladder to when there's no water?


Prior to operation, with the tank, empty of water, the pressure should
be 2psi below the cut-on pressure.


I am not familiar with your booster pump; why is it there? Could you post a pix
or diagram on a hosting site?


I'll take some pictures for you.
What site is a good one that most people use?


The pump could be running all the time if it cannot get up to the cutoff
pressure. This could cause it to overheat because water FLOW is the only
thing cooling it much, and can certainly soften plastic pipe parts. If
it can't pump, the motor energy heats the water in the pump.

The pump could be wearing out, and just can't get to cutoff pressure
anymore.

The black metal plug will rust. Galvanized less so, and brass not at all.