Thanks for the input pooldv. So if I round CYA to 50 and target FC is 6-8 then do I just start adding bleach a little bit at a time until I hit that target? Since there is no CL do I need to SLAM and get shock level FC to 20? Capn you let me know how much liquid CL I want to add at a time and how often to add It? I have 1 gallon of 12.5% and 1 at 6%.