Ask 'Dr. Spa' Q & A Message Board

I think it may have to do with your going away, with the dial at ten.

I did that a few months ago, when I was new to the system. The problem is that the generator is not a thermostat. The generator doesn't know how much Bromine is in the tub. It just keeps making Bromine, forever.

With the dial set at the max, at ten, it will make a lot of Bromine every day. And with no bathers, there are no organic molecules to interact with, and use up, the Bromine.

When I came back from holidays, the Bromine levels were way too high. If you had excessive Bromine, that may have caused an early degeneration of your electode.

John

: Thanks for your quick response. I'll keep you and this board in the
: loop. We just run it on the cycles and heating it up. It was working
: great as we used it lots in Nov and have the generator set at 10.
: Then we went away have not used it 4 weeks...When we came back there
: was the black soot. So it might be what you mention. I'll let you
: know.

: Kerry