Pool installed yesterday and electrical in today. I added the appropriate amount of CYA, per Pool Math using a target of 30 ppm, in a sock through the skimmer. Before bed I tested my FC and pH. FC was one and pH was 7.2. Per pool math, using 0 CYA, I added the appropriate amount of bleach. As I've read, I shouldn't retest for CYA until next weekend. What CYA value do I use this week in Pool math to calculate the amount of bleach I add, 0 or the target of 30ppm?