My CYA is 90 and I've been getting my FC to 12 at dusk for the last few days. It's been sunny all day and hot with temps in the 90's. We've had people swimming every day, pretty much all day.
For the last few days, when I've checked my FC at the end of the day, it's been 7. So, does that sound "normal". I raise it to 12 and then the next evening when I check, it's dropped to 7 and then I raise it to 12 again and then the next evening, it's 7. I'm thinking that tonight, I'll go out at put in 2 jugs of bleach and then check in a couple of hours and the FC will be 12. Then, tomorrow we will swim and check at the end of the day at it will be 7.