Ok, we have a 1 year old pool (finished and opened Aug 08) in Phoenix AZ. Water here is super hard. I read my CH at 590, pool store puts it at 700ppm. How big of issue is this and what should I do if anything? Started out when new around 350ppm. The pool store showed me a bottle of "Cal Rite" which is supposed to lower CH about 400ppm, however, he said I would then have to do something with scale? Any recommendations, how high should I let it get?
Water is crystal clear and pool is beautiful.
Here are my numbers with a the TF100.
Water temp: 88 degrees
Salt: 3200 (rec range 2700-3400)