Update for today; Added 3 gals last night ended up with the following readings. TC 18, CC 1, FC 17; This AM had TC 15, CC 1, FC 14. This is the forth day of 3 gals/day chlorine addition. Is this normal in the battle to clear up the mess from the degradation of the CYA over the winter??? Been losing 3 to 3.5 ppm overnight the goal is just a 1ppm loss correct?