thanks .....At the first sign of green hair or inabliltiy to maintain proper copper levels....it will be disconnected. I did read somewhere that it could be...not sure how hard that is....but I cerainly will try if it isn't (probably just disconnect a wire and run the system longer to produce proper cholorine levels). I never measure my CYA...I just put it in until my ph level is normal (not sure if that is good or bad....but it has worked). I had trouble never keeping my ph in check until I used a stabalizer for the cholorine. obviously it is all connected....but I have read in numerous places that as long as your chlorine level is stable and your ph is good (which is easier to maintain if the chlorine is stable)...then everything else falls into place. I am not an expert on any of this, but that certainly has been true for me.

thanks for your thoughts on the subject...