Question about Plumbing
Most water pumps which pump water from a well into a house have a pressure vessel which keeps the water pressure up without the pump running constantly. When the pressure in the pressre vessel drops below a certain level the pump comes on and when it reaches a certain level it turns off. When there's no taps/faucets running the pressure should stay constant. To prevent the water just returning to the well there has to be a non return valve. It's possible that the non return valve is leaking water back to the well. This would account for the pump running night and day. As the water is just returning to the well there would be no sign of leaks.
The fact that you saw ice on the casing could mean that there's a leak elsewhere, the most likely places being either a pinhole in the pressure vessel or a joint. However if these were leaking there would be water to be seen. A pinhole in the pressure vessel would result in a fine jet of water spraying from it while a leaking joint would have a constant, but possibly very slow, drip. If you feel around the joints you should find one of them wet if this is the problem.
The pressure vessel has a bladder, like a football bladder, which should contain an air pressure of approx 20Lbs. Over time this drops and it should be checked and pumped up, if necessary, once every year. There should be a valve, like on a car wheel, for pumping it. It's usually covered with a black rubber dirt cover which can be pulled off to pump it and pushes back on afterwards. To pump this you need to turn off the electric power to the pump and run a tap/faucet until the water stops flowing. Leave the tap turned on while you pump the pressure vessel so that the water can escape and not give you a false pressure reading. You can use a car pump to pump it up. When it reaches 20 lbs you can turn the power back on and turn off the tap. If this pressure drops too low the pump will continue to work but will run almost constantly as it will not be able to hold pressure. When it's pumped up you'll notice that the pump only comes on when the water pressure in the vessel drops.
I hope this is of some value in solving your problem.
Posted on Apr 01, 2011
First,!!!, how deep is this well 600 feet or lower??? & what is the (Vacuum/Pull to the up-bound intake gauge to the pump intake) & outbound from this wells pump(& what pressures are there, possibly, are you getting sand into the intake of the pump(from the pump at the base) from the terrain and starving the pump??? Also, is it a Jet or Deep-well unit???
Posted on Apr 01, 2011
Ok as the moisture turns to Ice and freezes it expands and so do any joins holes or gaps these may or may not close up, when it warms up? if they don't then there is a gap water may come out. The same thing may apply to the water in the ground, , at the surface or close to, the colder water is sort of thicker, harder to move and therefore less pressure would be exerted from under the ground, and less water would come out in colder temperatures? due to atmospheric pressures?
There should be glands, "O" rings, Gaskets, around the mating pieces of the pump, perhaps these should be checked? perhaps at the colder temperatures they don't seal as well, and one is losing pressure?
Also maybe the power energy drops over winter, perhaps the power is browned out, and the pump doesn't get the power to work at full capacity, that it may perform in say the Summer?
It may pay to remove the pump and give it a complete overhaul, and service.
It's all just a theory?
Posted on Mar 31, 2011
You did not say if your pump is above the ground or in the well...
Either way it sounds like the problem is with the foot valve or check valve that keeps the water from going back into the well...
If it is a submersible pump then you can install a check valve by the pressure tank to keep the water from flowing back into the well and out through the pump...
If you have a jet pump on top then a check vlave can be much more difficult and it is probably better to pull the piping in the well and replace the foot valve...
Posted on Mar 30, 2011
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Posted on Jan 02, 2017
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