Let me post my numbers first:
CH. 180 (Using Taylor test kit)
OCLT done several nights and may use .5 at the most, so things seem good there. Water is sparkling, crystal clear. During the day I wil lose 4-5ppm chlorine. This seems like a lot of loss considering how high my CYA is. I am draining and adding water to try to lower my CYA. I like to keep it around 40. (I am testing before adding a bunch of new water, then retest once I'm done adding water and add chlorine to bring it to proper level overnight). Last year, keeping CYA at 40, I would only lose 1-2 ppm on full sunny days. I know my Ph is on the high end of the good range, it just shot up from a hard rain yesterday. My well water Ph tests at 7.2, so I will retest Ph after I'm done adding water today and see if I still need to lower it a little. Am I being overly critical here, or could I have some kind of problem brewing?