I have an Intex pool that I converted outlet to standard Hayward 1.5" inlet connector, but I can't get the darn thing not to leak. In fact I've tightened it so much that I've cracked it and will have to replace. I looked online (after the fact of course) and it stated that silicone should/could be added to rubber gasket to help with sealant. When I replace the inlet connector will I have to drain water below connector or can I do it underwater? If I wanted to add silicone I was afraid the silicone would wash off or otherwise not be effective if I applied it to the gasket then assembled the assembly underwater, even if I do it quickly. Can I still add silicone even though the installation won't be dry? Or is there something else I can put on gasket instead of silicone, maybe gasket sealer, or Pipe dope? Thanks.