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Thread: Pool losing water via main drain

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    Pool losing water via main drain

    Pool is losing water via main drain. Every time I run the pool (normal operation) water is flowing out through the main drain and I need to add water to the pool.

    If I put the valve on recycle mode, there is no water draining via the main drain. However every other setting lets the water drain via the main drain.

    Here is the a photo of the pump area. You can see that both the skimmers and the main drain are on the same valve (on the left side of the valve). Does it have anything to do? But the problem started just recently.

    I tried all possible combinations of the valve settings, but no luck.

    Or the valve itself gone bad (the valve in front of the filter that controls various modes like backwash, recycle, waste etc)?

    Really appreciate your kind advise.

  2. Back To Top    #2
    bobodaclown's Avatar
    Join Date
    Apr 2011
    Location
    Lakeland, FL
    Posts
    2,351

    Re: Pool losing water via main drain

    You do have a multiport valve? Sounds like you need a new multiport spider gasket.
    Here's a link:
    How to Replace a Spider Gasket on a Multiport Valve
    http://www.inyopools.com/HowToPage/h...ort_valve.aspx
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    Re: Pool losing water via main drain

    Thank you very much, I will try this and will let you know.
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

  4. Back To Top    #4

    Re: Pool losing water via main drain

    Thanks a million bobodaclown! I replaced the multiport spider gasket and the issue went away right away! Your advise was very very helpful!!
    NUbee!
    Rancho Santa Margarita, CA
    Gallons? Unknown. Medium sized pool.
    Filter? I think cartidge. Big beer can looking device with pressure valve on top running around 30 PSI
    Inground plaster pool.
    Spa above spills into pool. Waterslide above Spa spills into pool.
    Heater: Purex Triton MiniMax
    Vacuum: Hayward Navigator
    Pool guy does regular water maintenance.

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