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Old 03-01-2011, 02:31 PM   #1
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low water pressure from well pump supply


I have had low water pressure for a week. It was about 18 pounds.
I replaced the water pressure switch and that made no difference at all.
we took the pipe off at the well supply and it was pumping water, although not the pressure I have been used to having at the well.
( I had to replace the supply line to the house two years ago due to a rupture from shrubs.), and there was good pressure from the submerged well pump.
We checked the reserve tank. turned the water off and drained the water lines in the house. we emptied the air from the reserve tank and refilled it to 28 pounds of pressure. It holds the air steady.I have checked it several times over a few days.
Then replaced the submersible pump thinking the impellers were bad.
The pressure increased two pounds, but still low water pressure in the house.
I have heard that the well pump is not responsible for the water pressure inside the house.
So what would a plumber do in this situation?
Thanks

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Old 03-01-2011, 04:54 PM   #2
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low water pressure from well pump supply


The riser coming from the pump to the adapter?

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Old 03-03-2011, 12:59 PM   #3
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low water pressure from well pump supply


The water pressure from the pump to the house is less than it has been in the recent past.
From inside the house to the pressure switch, the gauge reads 20 pounds.
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Old 03-03-2011, 01:16 PM   #4
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low water pressure from well pump supply


Okay, assuming that the gauge is close to right, you said that you recently replaced the pump, and that you replaced the line from the pump to the house two years ago, so when you changed the pump, did you inspect the pipe from the pump to the adapter? It seems evident that the problem is between the pump and the house, so you will need to inspect the riser, the line that you replaced two years ago, including any couplings that may be in that line, and that you have the adapters seated where the riser connects to the well casing. It just occurred to me too, that maybe the first thing you should do is check that both lines running to your pump are live. They should be on a common breaker, but perhaps one side did not reset for some reason.
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Old 03-03-2011, 02:28 PM   #5
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low water pressure from well pump supply


The water line I replaced (black pvc) was from the top of the well to the house supply that runs to the pressure gauge and the water pressure switch inside the house.
As you recommend, I will check the electricity before I do anything else..
My plan was to replace the 1 inch PVC line from the bottom of the well to the top of the well next.
Appreciate the advice.
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