Are you talking about the water exiting your returns? No matter. The hydrogen bubbles don't tell you much. They're just sort of a secondary double-check dealio. Seems your cell is OK and that you're on the right track figuring out what is consuming chlorine. Neat trick filling a removed SWG with pool water to see if it does its thing. I don't think that would work on mine, as in addition to checking salt and water temp, mine checks for flow, too. I suppose I could manually press on the flow switch, but I don't think shoving fingers into an active SWG is a good idea!
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