Leaking Jandy Check Valve

n8huntsman

LifeTime Supporter
Apr 5, 2009
227
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?
 

Tiger85

Member
Jun 2, 2010
16
Orlando
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 :whoot: 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
 

Tiger85

Member
Jun 2, 2010
16
Orlando
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.
 

imagerep

New member
Jan 4, 2014
1
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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