I added 4 lbs of Calcium Chloride at 1PM ET today to raise the calcium level in my pool. Test results before adding the Calcium Chloride were as follows:
FC = 4.0
CC = 0.0
pH = 7.6
CH = 200
Alk = 110
CYA = 40
Tonight, at 8:45PM ET, I started to test my water, but am not getting a reading for...