Drained some rain from the pool today. Turned off pump and put valve back to filter. Happen to glance out at the pool 2 hours later... down 6" 😢 Took valve cover off, sure enough loose gasket. I used blue marine grade silicone a year ago. Went to pool place, they said to use black pool goo... Going to try to repair, but it's 8 years old and gasket replaced once. New valve is like $150 (if I do it). Think it's wise to change it out? Or just order a new gasket (if old one fails again)? Pool guy thought existing gasket was in good shape and should work with proper glue, as long as I can get old cleaned out. What's black pool goo? He said he didn't have any but would call me when one of his trucks returned.
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