I have a 17,000 gallon plaster pool. The Chlorine level is 3.0 (I use trichlor pucks), PH is 7.6, TA is 65, CYA is 45. My problem is I can't keep my calcium level above 200. I keep adding calcium chloride to the pool. It raises the calcium level to about 205. Within 2 days I'm at 190, and it keeps falling from there. This has been going on for about 2 months now. There is no discernible leak. My pool is not used at all. Any ideas about why the calcium level keeps falling? I live in a Southern California valley. Summer temps are in the mid to high 90's. Any help is appreciated. Thanks
Mike
Mike