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Thread: Lost prime/Deep Well

  1. #1
    DIY Junior Member lynch420's Avatar
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    Apr 2011
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    Question Lost prime/Deep Well

    Just moved into an older house built in 1920. At first it took a couple of times to prime before we got continuous water flow. The old pump would prime and shut off but needed tapped to get to turned on sometimes when water pull was too great or long. Eventually the old pump motor went out and we lost prime. We installed a new 1/2 hp convertible jet pump but still couldn't get prime. Its a deep well we removed the well seal/cap and replaced it as well as the foot valve. It took a couple times but we were able to get running water. The pump never gets above 30 psi, but with the old pump it never ran past that anyways (we even tried an air pump). I ran the washing machine and at first the washer did not kick on the pump. I usually run the kitchen faucet to get it to kick on for the washer. I started to lose water pressure and avoided using water while the washer. When I checked the well had lost prime anyways. Is there anything else to consider before we check for a leak from the house to the well? The problems in the past have seemed to come from the pull from the washer. It was the first time I tried to run water to the washer since the old pump.

    Thanks.

  2. #2
    DIYer, not in the trades LLigetfa's Avatar
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    Feb 2011
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    NW Ontario, Canada
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    Default

    Do you have one pipe or two going to the well from the pump?

    How far down the well is it to reach water?

    What is the pressure switch set to turn the pump on and off?

    Does the system have a bladder tank and if so, with the pump off and the tank drained what is the air precharge pressure on the bladder?

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