Thanks for the response Al. The pressure starts at 15 on the first day and then raises to 20-22 when the problem occurs. Thanks for the help.



Quote Originally Posted by Poconos View Post
From what you say it sounds like the filter is plugging up slowly and because of reduced flow any air that does get in the system isn't purged. Sounds odd. What is the pressure doing? This may be a clue.
Al