My pre filter on my Hayward pump keeps sucking air.
I've got the lid pretty tight and use silicon/Teflon pool gasket lube but it still leaks a bit. In fact, often when I shut it off back pressure squirts some out the lid. (I also have roof solar).
I can't really hand tighten it any more than it is because a pipe is in the way, and I use that special wrench to take the lid off. I'd like a better gasket.
Sooo.... I'm thinking of buying a fatter "O" ring on Amazon or somewhere. On a site I visited, an O ring was described as: 7.8 x 5.8 x 0.2 inches. Is the first number a measurement of the span over two pegs for example? (I need to mic mine to get the right dimensions). And what hardness should I be looking for? (AKA durometer) and what material should I look for that is compatible? I'd hate for it to break down and glue my lid shut!
Thanks in advance