Back wash pipe leaking


Active member
Jun 2, 2009
My pool is 15 months old, only used about 6 months. Noticed I was losing water, the backwash pipe has a steady stream of water running out. I have played around with the valve and it dosent stop it.

Water comes out of the pipe even when the pump is off. Could it be some type of gasket ? Seems too soon to be having problems. Thanks


Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
In The Industry
Apr 1, 2007
Sebring, Florida
From your brief description, the gasket inside the multiport valve sounds like the culprit.

It's a reasonable DIY project if you are inclined to do so.

Bama Rambler

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2009
SouthWest Alabama
I agree with Dave, the spider gasket has probably rolled out of the groove. Shut off the flow to the filter and take the top off of the valve and you should be able to tell if the spider gasket is the problem. As Dave said, it's relatively easy to replace.

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