Backwash valve leak Pentair 4060


Well-known member
May 14, 2013
My Pentair 4060 has the push-pull backwash handle under the bottom of the tank. I’m lately getting a slow leak from the backwash line when it’s in filter mode. I’ve tried cleaning the tank from the top and working the handle back and forth to loosen dirt but that doesn’t remedy it. I’ve seen very limited YouTubes on how possibly to fix it, replace a gasket. Looks like a bear. Is there an easy way from the top/innards of the tank? I’m not in a position where I can get under it and take things apart. I tried putting a temporary cap on the backwash line and the pressure in that line built up so high that I started getting a drip under the tank itself. Thanks.

Texas Splash

Mod Squad
TFP Expert
LifeTime Supporter
Jun 22, 2014
Texas, San Antonio/Marion, South-Central Area
Pool Size
Salt Water Generator
SWG Type
CircuPool RJ-45 Plus
This post is a bit dated, but there are rebuild kits for those plunger/slide valves. Have you looked into that yet? Many pool supply places online (i.e. Inyopools) can help. If a new kit is not available, you may have to replace the entire assembly.
Thread Status
Hello , This is an inactive thread. Any new postings here are unlikely to be seen or responded to by other members. You will get much more visibility by Starting A New Thread