My pool guy just told me that if I was going to be using an SWG (and I am), that I need to buy a chlorine thingy to prevent calcium scaling. He has been wrong about everything else up to this point, so I just thought I would check here. I am doing a search now and have already read about calcium scaling in Pool School and it appears that calcium scaling has more to do with PH and keeping my levels good.
What was this calcium thing he was referring to anyway?
What was this calcium thing he was referring to anyway?