Quote Originally Posted by shoveler View Post
so for now I'll buy more of the dual action and hope the trouble stops.
I don't think you want to use the dual-action ones, Gary. Unless I am mistaken (and someone please correct me if I'm wrong), I think that the dual action ones have copper in them and you do NOT want copper in your pool! Contrary to popular belief, it is not chlorine that stains things and turns blonde hair green, it is copper!