Ph last night was <= 7.0
TA 20 -> added prediluted 16 oz baking soda
CYA undetectable still
Ph 7.2 (after one pool turnover of baking soda addition)
I will keep adding diclor as my clorine addition until CYA builds up. I'm surprised I'm only losing about 1 PPM per day it seems of Cl even with a very low CYA level.
I also noted that the pool calculator doesn't account for additions of other effected items. If you add diclor your CYA will go up but when you use the option in FC level it doesn't effect CYA it just tells you it does. Also adding baking soda for TA raises TA but also the PH it doesn't tell you how much the Ph will raise based on your addition.
I don't know who has the code for the pool calculator [I'm a C++ windows coder by trade] but it would sure make it easier to account for all effects because I had no idea how much 1 oz of baking sode would raise the Ph but now I know.