I'm having a little chlorine loss at night. My chlorine levels have been so high, it is more of a guess at how much chlorine loss I am actually having. But, I am having some.

Hopefully, nothing is swimming in the pool at night. On second thought, maybe it would be fun to having something swimming in the pool overnight.

I do have a pool cover that I use. I have been leaving it partially open to let the chloramines air out at night.

Thanks for your help!!