Air bubbles from one return

Gnarbrah

Well-known member
Apr 24, 2022
115
Florida
Hi all -
Was working on the pool this weekend and one of the things I did was pull my IC-40 and acid wash it. It wasn't bad but had quite a bit of pollen that made it past the filter in there. It cleaned up well and after I put it all back together I had a small drip on the pool side of the SWCG at the union. I pulled it off again, pulled, cleaned and lubed the o-rings and I think I've got the leak stopped. All that said, I now notice a steady stream of bubbles from one of my returns. I wouldn't think a small leak on the pressure side would cause air but other than that I don't notice anything wrong. Pool is full to half way up the skimmer (not sucking air), filter baskets are clean and only a tiny little bubble hanging out at the top of the pump basket. Any clue what to start looking at? Here's a pic of my pump setup and one of the leak (zoom in on the palm tree reflection and you can see the bubbles):
AirBubbles.jpg
PoolPump.jpg
 
Air wouldn't be from the SWC (pressure) side. Air gets pulled "IN" on the suction side (pump or before). Maybe check the pump lid closely. Make sure it's lubed well and on good. Also remember the SWG produces bubbles when it's generating. In the pic, they look a bit large for cell bubbles, but hard to tell. My cell produces champagne-sized bubbles.