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Thread: Multi Port spider gasket leaking?

  1. Back To Top    #1

    Join Date
    Jun 2010
    Location
    Woodstock GA
    Posts
    8

    Multi Port spider gasket leaking?

    Can someone please tell me if I have a multi port spider gasket leaking? When the valve is in the Filter position and if I do not have the valve handle lifted all the way up I have water dribbling out of the back wash hose, which initially led me to believe I had a leak from the pool itself but realized now it is coming from the backwash port when the pump is running.
    24' Round 13500 AG
    22" Sand Filter
    1 1/2 HP Waterway
    BBB
    TF Test Kit

  2. Back To Top    #2
    stev32k's Avatar
    Join Date
    Mar 2009
    Location
    Mobile, Alabama
    Posts
    492

    Re: Multi Port spider gasket leaking?

    Those gaskets do leak from time to time. I've had to replace them more than once. However, if your handle does not go to the up position by itself it may be either the "O" rings on the stem or the spring. There are two O rings on the stem and if they get old and hard they can crack and prevent the seat from going all the way down to seal off against the gasket. The spring can also lose its spring and needs to be replaced from time to time.

    The O rings and gasket need to have a very thin layer of a silicone grease applied to the outer edges so they will slide and seal properly.

    So if you suspect a leak from the multiport valve I would replace the spider gasket, both O rings, and the spring. It's not very expensive to do the whole rebuild and that should correct the problem.
    20' x 40' IG with vinyl liner volume approx. 35,000 gal.1.5 H.P. main pump, Polaris 280 cleaner W/ 3/4 H.P. booster pump
    Hayward sand filter, 3.14 sq ft, 62 gpm. Stenner 45 MPH10 chlorine feed pump. 1 micron final filter bags (home made and very effective)

  3. Back To Top    #3

    Join Date
    Jun 2010
    Location
    Woodstock GA
    Posts
    8

    Re: Multi Port spider gasket leaking?

    Thanks for the response. A good winter project seeing how I will be closing pool in 3 weeks or so.
    24' Round 13500 AG
    22" Sand Filter
    1 1/2 HP Waterway
    BBB
    TF Test Kit

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