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Thread: shallow well jet pump mystery

  1. #1
    DIY Junior Member peterng's Avatar
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    Default shallow well jet pump mystery

    Good day, bought all I got done tonight was had a beer. That went well.

    I don`t know much, but here`s what I can see.

    Pump pressure guage reads 40psi. I took the primer cap off, full of water, no pressure. No water coming out of pump and pump not running. Lots of power. I cleaned the contacts. Going down now to see if the tubing to the pressure switch is plugged. Last year I adjusted the pressure switch to shut off around 40psi, though it was set a little higher but can`t remember.

    Thing is, there`s no pressure, pressure guages known to go bad are theyÉ
    Can I test to see if the impeller is spinning freely without dissasembling the pumpÉ

    Diamond 1 1é2hp pump model 313501. It was in the house when we bought it. Age unknown, at least 5 years old.
    Thanks,
    Pete

  2. #2
    Moderator & Master Plumber hj's Avatar
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    Default water

    IF the pressure gauge reads 40 psi and there is no water, that might be the first indication that something is not working right. Remove the pressure gauge. IF it stays at 40 it is defective, if it drops to zero, then the pipe to it, and probably the switch, is clogged.

  3. #3
    That's all folks! Gary Slusser's Avatar
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    Default

    Quote Originally Posted by peterng View Post
    Pump pressure guage reads 40psi. I took the primer cap off, full of water, no pressure. No water coming out of pump and pump not running.
    If you get the pump to run, things might improve.

    There may be a blockage in the line and its fittings to the pressure switch.
    Gary Slusser Retired (= out of business)
    Click Here to learn how to correctly size or program a water softener.
    CAUTION, as of Nov 12 2013 all YouTube videos showing how to rebuild a Clack valve have an error in them that can cause damage.

  4. #4
    Homeowner Thatguy's Avatar
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    Default

    How deep is your well?

  5. #5
    Previous member
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    Default

    bypass the pressure switch and see if the pump runs

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