OK, I just went through getting my CYA from 200 down to 50 with 2 large water changes. Now the pool is crystal clear but is eating up chlorine. I am having to add a 1.42G container of bleach every day just to keep my chlorine above 2 or 3 ppm which is still low. Last night I checked my FC after sunset and it was at 4.0, this moring ir was at 2.8 so I am losing FC at night. I am going to bring my FC up to 20 and hold it there until I no longer see the large drop at night....is this correct? Everything else (PH, Alk, etc) is in line.