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
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
From what I have read on this forum that pressure sounds real high for a cartridge filter. I think I saw a post recently that stated somewhere in the low teens but not sure of that. I'll bet if you check the flow you will find it's real low.
Al