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Thread: Dry well pump selection

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    Lershac's Avatar
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    May 2007
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    Baton Rouge, LA
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    Dry well pump selection

    Hi everybody.

    I am having trouble selecting a pump for my drywell going under the gunite pool. Essentially I have a 2" perforated pipe buried in gravel going beneath the deep end of my pool shell. I want a positive displacement pump to mount at the equipment pad to pump water out from under the shell in the event I have to drain my pool. I thought I had the right thing, it's a diaphragm pump that can prime up to 10' vertically (pool 5' 6" deep) but upon connection, suction does not seem to be enough to get the water up and out. I pressure tested the plumbing down to the point of where the pipe will go under the shell and it's fine, so I am guessing I bought the wrong pump. Anyone with experience here can point me in the right direction? I have a shurflo 120v diaphragm pump, is there a better one that has more pull?
    (DIY):16K Gal 20X30 rectangular IG Gunite, w/spa, CCP 520 filter,2 Pentair VS pumps, 400KBTU Pentair gas heater, Heat Pump for cooling, **update5.25.2013** added an intellichem with acid pump that will control existing SWG. My Build Thread Here

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    Mod Squad Bama Rambler's Avatar
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    Jun 2009
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    SouthWest Alabama
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    Re: Dry well pump selection

    Your best bet is a submersible pump lowered into the well but if that won't work a mud pump will prime under a high lift.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Lershac's Avatar
    Join Date
    May 2007
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    Baton Rouge, LA
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    Re: Dry well pump selection

    Can you give me a make or model or a website?
    (DIY):16K Gal 20X30 rectangular IG Gunite, w/spa, CCP 520 filter,2 Pentair VS pumps, 400KBTU Pentair gas heater, Heat Pump for cooling, **update5.25.2013** added an intellichem with acid pump that will control existing SWG. My Build Thread Here

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