Ok. You've got a lot of symptoms that I need to ponder but I can't address them now as I am mobile the Pool Forum software sucks on mobile devices. One thing about bubbles in the pump basket is they are typically indicative of a suction-side leak, usually the o-ring that seals the pump basket cover. Check that to make sure the seal is still good. I also have some issues with your filter startup procedure that I'd like to detail in another reply when I get back home. You're doing it ok, but I think there's some room for improvements there. I'll detail what I do and you can spit-ball it to see if you it'll work for you.

Talk to you soon.