Pool plaster surface is about 4 months old. Once I started testing the water myself with a Taylor K-2006, I started working TA down from a high of 130 to where it is today. CYA after the pool was turned over to me was 60, and CH was 200. Torrential rains over three weeks in July pretty much did a number on my pool chemicals, but after 12 pounds of calcium chloride and several additions of CYA, I have finally got them all adjusted (I wish my rain making procedure--adding CYA--would work for folks in the drought-stricken west). My CH could probably be a little higher, but I'm waiting for another month or month and a half for the likelihood of more torrential rains to decrease.
I understand that with new plaster pH is likely to tend upwards, as it also is with a SWG. I find myself adding anywhere from 8 to 14 ounces of muriatic acid every other day to keep pH in check. Just wondering if this is out of the ordinary.