I have tiny bubbles coming out of my return outlets. Not a whole lot of bubbles either. Looks a bit like carbonation fizz. My Pentair pump does have three dollar sized bubbles that I can see banging around. I think they have always been there (even before I noticed the fizzies). Is it true that there should be no bubbles showing in the pump strainer window?
Any tips for tracking down the source of my fizzy bubbles?