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Thread: Skimmer

  1. Back To Top    #1

    Join Date
    Jun 2010
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    Skimmer

    Hoping someone can answer this question for me. I have a 20x40 IG pool. At the bottom of the skimmer, there are two holes. I imagine one of the holes is the return to the pump. What is the other one for? And how do i winterize it? There's a plastic latch that seems to be able to block off on or the other of those holes.

    Thanks!

  2. Back To Top    #2

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    Re: Skimmer

    Do you have a main drain? The second hole goes to it and the flap thing is a diverted to control suction between the skimmer and the main drain
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

  3. Back To Top    #3

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    Re: Skimmer

    Edited: posted response to another thread here.
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

  4. Back To Top    #4

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    Jun 2010
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    Re: Skimmer

    Quote Originally Posted by carlscan26
    Do you have a main drain? The second hole goes to it and the flap thing is a diverted to control suction between the skimmer and the main drain
    Yes, i do have a main drain. So what does this flap do exactly?

    The main drain goes to the pump AND the skimmer...or just to the skimmer?

    Thanks!

  5. Back To Top    #5
    JasonLion's Avatar
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    May 2007
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    Silver Spring, MD
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    Re: Skimmer

    Some builders plumb the main drain to the second hole in the skimmer, others run a separate pipe back to the equipment pad, and a few join the pipe from the maine drain with the pipe from the skimmer underground somewhere.

    Having a skimmer with two holes in the bottom is suggestive that the second hole might go to the main drain, but it doesn't prove anything as many builders always use two pipe skimmers even when they aren't connecting the second hole to anything at all.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  6. Back To Top    #6

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    Dec 2010
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    Re: Skimmer

    Acadian, do you have a valve for the main drain at your equipment pad as Jason described? If not then you'll need to do some tests to see if the MD is connected to the skimmer but considering that you have that flap thing it most likely does go to the MD
    15,600 Gallon, 16' x 32' In-Ground Vinyl Pool
    Pentair VS 3050 pump, Quad DE 60 filter and SunTouch controller
    8 gallon Liquidator, Aquatherm EcoSun Solar Panels, 2 wheel ThePoolCleaner

  7. Back To Top    #7

    Join Date
    Jun 2010
    Location
    NB, Canada
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    66

    Re: Skimmer

    Yes, i have two valves going to the pump.

    I will have a closer look in the bottom of the skimmer and try to see if that second hole goes anywhere.

    Thanks!

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