I had a broken handle on the top of my Hayward S244T. I had the local pool shop rebuild the multi valve Key Cover and Handle Assembly. I also replaced the sand and the Lateral Assembly with Center Pipe. The pool is functioning great with no leaks except I now have an annoying noise where the top assembly clamps to the filter - sounds like air or gurgling water. I see no air coming into the see-through strainer cover on the pump. My pressure is at 14 - I'm getting crossed eyed googling this issue - any suggestions please???