Hey guys, member me? I did the Bacqua-goo conversion a couple of weeks ago, went on vacation and now back and maintaining my crystal clear pool. I have a question about my FC consumption. I understand that FC is only consumed by sunlight or organic matter.
Sunday when I returned from vacation my CC was 0.5 (6 PM) and yesterday (Monday 8 PM) my CC wasto 1.0 so I brought my pool to shock level last night (FC 16.5 - took reading about 1/2 hour after adding bleach). ph 7.2, CYA 60.
This morning when I woke up I did a reading and my FC was 18.0 (actually went up!) CC was 0.2 (very very light pink; I don't think I needed a full drop to bring it back to clear so I estimate 0.2). pH 7.2. When I got home today from work I took a reading and my FC dropped to 8.0 and CC was 0.5. Swimmer load today was 3 teens for 2 hours and they didn't splash enough to raise the pH.My question/concern, with a CYA of 60 and FC of 18.0 this morning is it normal to drop 10 ppm today over a 12 hour period?
What should my actions be, wait, shock, other?
I just added 4 lbs, 12 oz of Borax just now to try to get pH up from 7.2 to 7.5.