I think I caused my own problem, but not sure how to fix. I replaced the spider web gasket ( including a plastic plunger part that holds the gasket) and now when I run the pool on waste or backwash I get water squirting out of the three little holes (which I never noticed before) in the end if the sight glass. Additionally when I turn the pump off I can hear the valve loosing suction through these same holes, and if I put my thumb over them it holds pressure. Did I put something back together wrong, or did fixing one problem cause another? The valve is a pentair 6 way that is about 15 year old.