we had an issue with sand in our multi-port valve to the point where we couldn't move the port handle. We ended up taking it apart and putting it back together. a few days later, we realized that we were losing water through the waste hose when the pool was set to filter. I opened it up again and determined everything was OK, except that the rubber gasket that surrounds the various port entries/outputs probably needs some RTF.
how important is it that the surfaces remain completely dry while the RTF is drying? it says it needs 5 minutes to create a skin and 24 hrs to fully cure? there is water constantly in our valve, so i dried it as best i could before applying the silicone and the gasket.. but within minutes, it was covered in water because of the leveling of the water in the DE filter, i think. do I need to drain the filter before i do this? and do i need to apply pressure to the gasket to make sure a seal is formed?
thanks so much,