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Thread: Leaking Jandy Check Valve

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    Leaking Jandy Check Valve

    My raised spa drains down to the level of the jets back into the pool if I do not close the bypass valve that operates the spillway. I took that check valve apart and everything looked good. Put some o-ring grease on the flapper seal and put it back together. Still leaks. When they fail, are there visible signs? Seems like I'd be able to see something wrong but I can't. Any thoughts?
    15,000 gallon gunite pool, grey plaster with 8' raised spa
    Jandy PlusHP Pump 2 HP Dual Speed
    Sta-Rite 450 Sq. ft. Cartridge Filter
    Cleva-Chlor RP40HD
    Raypak 400k btu heater
    Jandy Aqualink RS-8 One Touch
    Savi Melody 12v LED lights

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    Join Date
    Jun 2010
    Location
    Orlando
    Posts
    16

    Re: Leaking Jandy Check Valve

    My spa was doing the exact same thing for some time and I finally got around to replacing the flapper assembly on my Jandy check valve a week ago and it fixed the problem You have to buy the cover and flapper assembly as a replacement part, which is kind of a waste, but it makes the repair pretty simple. Just seems a bit costly to fix a worn gasket.

    Tiger85
    26' x 13' freeform 10K in-ground w/quartz finish, attached spa, 36" sheer descent waterfall, 2hp sta-rite pump, sta-rite S8M150 cartridge filter, 400K BTU sta-rite natural gas heater and Jandy Aqualink RS-8 controller. Sunny Orlando.

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    Re: Leaking Jandy Check Valve

    Did you see any signs of wear of damage on the old flapper?
    15,000 gallon gunite pool, grey plaster with 8' raised spa
    Jandy PlusHP Pump 2 HP Dual Speed
    Sta-Rite 450 Sq. ft. Cartridge Filter
    Cleva-Chlor RP40HD
    Raypak 400k btu heater
    Jandy Aqualink RS-8 One Touch
    Savi Melody 12v LED lights

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    Join Date
    Jun 2010
    Location
    Orlando
    Posts
    16

    Re: Leaking Jandy Check Valve

    The old gasket on the flapper didn't really look that bad. It wasn't very worn looking, just bleached out more than anything. I was concerned that replacing it might not fix the problem, but the new one worked like a charm. The original one lasted about 7 years.
    26' x 13' freeform 10K in-ground w/quartz finish, attached spa, 36" sheer descent waterfall, 2hp sta-rite pump, sta-rite S8M150 cartridge filter, 400K BTU sta-rite natural gas heater and Jandy Aqualink RS-8 controller. Sunny Orlando.

  5. Back To Top    #5

    Re: Leaking Jandy Check Valve

    Like to restart this old thread.

    After about 10 yrs since my pool was installed, the spa started to drain into the pool. I replaced the Jandy Check Valve using the rebuild flapper assy kit. For a week it fixed the problem then the spa started to drain again. I removed the new flapper assembly again to inspect it. Looked fine but cleaned the rubber circumference of the flapper and the PVC contact area of the flapper mating surface with a clean cloth. Spa still drained into the pool. Once again I removed the flapper assembly but this time I put a very thin amount of gasket grease (that I had also used on the o-ring) to the flapper rubber as well as a very thin amount on the PVC flapper mating surface. So far that seems to have fixed the problem although it's only been a couple days. strange.

    Anyone out there want to comment on this?
    Thanks

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