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Thread: Do I need a main drain...inground?

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    Join Date
    Jul 2011
    Southern California

    Do I need a main drain...inground?

    We have a 15000 gal pool, dont know the dimensions but it is 74' perimeter and goes to 8ft deep. We are replastering and thinking of redoing the old copper plumbing. We were quoted on 3 return lines (we currently have 2) an autofill, a poolsweep line, skimmer, and split the main drain. We are kind of weary of cutting through the gunite for the main drain. Wont it weaken the shell? One pool contracter said we dont even need a main drain, that the vaccum and skimmer would be enough circulation. What are your opinions of the main drain. Should we just close it off? Thank you.
    15k gallon, gunite, quartz

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Do I need a main drain...inground?

    Welcome to TFP!

    While it is nice to have a main drain, you certainly don't need to have one. Aiming one of the returns down towards the bottom of the deep end is sufficient to maintain good circulation. Cutting through the shell for the drain won't make enough difference to matter.
    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

  3. Back To Top    #3
    Heckpools's Avatar
    Join Date
    Feb 2009
    New Jersey shore

    Re: Do I need a main drain...inground?

    I agree, a maindrain is not needed al long as you have other ways of good circulation....
    [center:3gj9kdnn]Matt Heck
    Serving Ocean co. NJ
    COMPANY INFO BELOW ... 2995187987[/center:3gj9kdnn]

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