You guys are amazing! I greased the O ring, cracked the pressure relief valve, closed the ozonator ran the pump a few min and and this is what it looks like afterwards: https://m.youtube.com/watch?v=6nP1wJ0Xftw When I turn the ozonator back on and close the pressure release valve I do get a tiny bit of air bubbles but I think that's to be expected since the ozonator injects air into the pump. Even then there's 95% less bubbles than the first video I posted.