When my SWG is operating (Autopilot) I notice "Tiny Bubbles" from my return. It's hard to see in the day but at night I can see them across the light of the pool, and they are ONLY there when the SWG is active.

Is this the hydrogen gas produced by the SWG. I have read here that the SWG will produce chlorine and hydrogen gas. I can't find any leaks that would be pulling in air and again, it only happens when the SWG is on.

Thanks,

Russell