I have an Aquasieve2 as my pre-filter on one of my pumps that I cannot get the screw on lid to seal properly so I am constantly bleeding air out. The lid has an O ring that is in good shape and I am tightening down as best I can but it still leaks air. I do not want to force the lid as I am sure it would be impossible to replace. Is there something that anyone else uses to help with making removable parts airtight? I have tried o ring grease but it does not last as long as I would have hoped.
Thanks