Last fall, a big storm pulled part of the cover off our pool and tons of leaves got into the water. We fixed the cover as soon as we noticed it but didn't remove the leaves from the water (HUGE mistake!!). Last weekend, when we opened the pool, the water was, of course, brown and murky. We have scooped all of the leaves out of the pool, but now are left with nasty brown water. We debated whether to treat the water or drain the pool, but have decided to try to treat it. I'm not sure if this was a good call or not. If we drain it, we could be swimming in it by this time next week. Not sure how long it will take to get clean water by treating this mess. We have been running the filter constantly and need to start adding chemicals.
The readings today look like this:
TH - 20
FC - O
PH - 7.5
TA - 240
CYA - 0
We would like to shock it today, but I'm unclear on what FC level I should be trying to achieve. From what I read about shocking, you should never raise the FC level above 5 if your CYA is 0. Can anyone help me?