Hello Everyone, I'm new to this site and new to pool ownership. I've learned so much just today by browsing through this site. However, I don't see any links to the problem I'm having. I just purchased a home from a family memeber and the pool has been set up for about 10 years. It's an AG pool, 18,000 gallons. Last year the pump strainer housing and lid were replaced and ran fine. When he closed the pool, we drained the pump and sand filter but left all hoses attached. Drained the pool level down pass the return and covered. He said this is the process he does every year. I filled the pool almost to the top to allow for cleaning and backwashing. When I placed the lid on the pump strainer housing, I get lots of water leaking out from around the seal where the lid mets the housing. I did use the magic lube and even replaced the o-ring on the lid. There are no cracks in the lid or housing so at this point, I'm lost even more than when I began!! Please help!!