The FC has been at 19.5 the last three testings but I think somewhere back in this thread, watermom advised to get it to 25ppm and hold and make sure CC less than .5 (the CC was 1.5 this morning), then back off until 10-15ppm and maintain. Ive been adding bleach to get up to the 25ppm but if I am understanding correctly, I can hold it at 19ppm, test every couple of days, and add bleach if necessary. PH 7.6 this am. It is to be sunny, hot and humid here for the week-normal summer. Will that full blown sun on the pool all day make my numbers go haywire again? Hang in there with me! I think I'm starting to "get it". My neighbor told me yesterday my pool was sparkling!