So I have a question/ need some guidance on Chlorine.
Here's the story:
The 18th, I opened the pool. I brought Chlorine up to 12PPM (CYA is <30) and held it there until the loss was 1 PPM overnight.
PH is 7.4, Alk is 90 PPM.
I went out of town for a week, threw my floater in with pucks. I...