water coming out of return during backwash


New member
Jun 1, 2019
Long time lurker on the best pool site/forum.

I'm closing my pool, but when draining my pool, I noticed water coming out of the return. Is this normal? Almost no water coming out when the valve set to backwash, only when set to drain. I opened up the valve, and the spider gasket seems ok, maybe very small nooks here and there but nothing major.

Maybe related, I was having a hard time this summer getting rid of small particles that settled at the bottom of the pool, a bit like very fine sand/dust. Laterals are fine and so is the standpipe.
Last edited:


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
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