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Replacement sump pump probs

Post in 'DIY and General non-hearth advice' started by Dcav, Feb 16, 2008.

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  1. Dcav

    Dcav New Member

    Joined:
    Feb 16, 2008
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    Loc:
    Western Ny
    Hello all,

    Just replaced an old sump pump (submersible) with the same hp rating and everything, i put the check valve in and placed the pump on bricks in the sump. When i plugged it in and move the float to activate the pump, the pump itself turns on but does not empty the sump. Any and all help is appreciated.

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  2. hillbillyhandyman

    hillbillyhandyman New Member

    Joined:
    Nov 13, 2007
    Messages:
    3
    Loc:
    Eastern Shore Maryland
    Please do not be offended by this question, but, is the check valve installed correctly? It only works one way. Most have a flow direction arrow on the case. As an aside, do you really need a check valve if the sump water is just being dumped outside? Less moving parts = less problems IMHO

    Try removing the check valve from the circuit and see how it works, unless the sump water is going into a wastewater pipe. You need a check valve for that application


    Good luck
  3. Dcav

    Dcav New Member

    Joined:
    Feb 16, 2008
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    3
    Loc:
    Western Ny
    The sump pump uses a seperate check valve on the pipe and it is listed as required. The pump just empites outside the house not into a sewer or anything. The check valve is installed in the direction of water flow, and is threaded right onto the pumps base. Then the pvc pip is connected via a boot to the check valve. And no offense taken i appreciate any help.
  4. Dcav

    Dcav New Member

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    Feb 16, 2008
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    Loc:
    Western Ny
    Ahh twas plugged up outside the house by ice, quick burn from the propane torch and were golden.
  5. Highbeam

    Highbeam Minister of Fire

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    base of Mt. Rainier on the wet side, WA
    You want the check valve so that the sump does not refill with a pipe full of water every time that the pump shuts off. This could lead to short cycling especially bad in smaller sumps.
  6. Hogwildz

    Hogwildz Minister of Fire

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    Next to nuke plant Berwick, PA.
    Check your pump manual if using a check valve. It might spec a 1/8" hole down on the pipe near the neck of the pump.
  7. Gooserider

    Gooserider Mod Emeritus

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    Northeastern MA (near Lowell)
    Remember that the pump might not be able to empty the entire sump, especially if it is on bricks - there is usually a certain gap just due to the nature of the pickup, probably on the order of about 1/2" to an inch (your manual should say) plus the depth added by any bricks....

    Gooserider
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