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Thread: Main Drains

  1. Back To Top    #1

    Join Date
    Aug 2008
    Location
    Delaware
    Posts
    45

    Main Drains

    After reading many posts about main drains,is there any harm in closing the main drains for any length of time ? Should they be left open most or all of the time?
    Susi



    30X14 IG,Vinyl,13,800 Gal
    Hayward-Pro Series Sand filter(Rated flow75GPM/284LPM)
    SWG-Aqua Comfort,Polaris360 Auto Vac

  2. Back To Top    #2

    In the Industry

    Join Date
    Jul 2008
    Location
    Pittsburgh, PA
    Posts
    118

    Re: Main Drains

    open them periodically so that the water within those lines doesnt go stagnant, but other than that you should have no problem as long as your water at the time you close them is balanced. Even if its not, pvc pipe is pretty resistent to low PH and the like. Just make sure that you still properly winterize them.
    Matthew
    Involved in the pool and spa industry
    Pittsburgh, PA

  3. Back To Top    #3

    Join Date
    Aug 2008
    Location
    Delaware
    Posts
    45

    Re: Main Drains

    Is there a benefit of keeping both main drains :P open at all times?
    Susi



    30X14 IG,Vinyl,13,800 Gal
    Hayward-Pro Series Sand filter(Rated flow75GPM/284LPM)
    SWG-Aqua Comfort,Polaris360 Auto Vac

  4. Back To Top    #4

    Join Date
    Aug 2008
    Location
    Delaware
    Posts
    45

    Re: Main Drains

    Can it be harmful to leave the main drains open all the time?
    Susi



    30X14 IG,Vinyl,13,800 Gal
    Hayward-Pro Series Sand filter(Rated flow75GPM/284LPM)
    SWG-Aqua Comfort,Polaris360 Auto Vac

  5. Back To Top    #5

    In the Industry

    Join Date
    Jul 2008
    Posts
    144

    Re: Main Drains

    With a Polaris vacuum it is usually better to keep the main drains mostly or totally closed. The Polaris will take care of the bottom, and the skimmers will get better flow with the Main drains closed. Open them periodically to keep them clean.

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