So I’m in the middle of a slam. CYA levels where 50-55 for a solid week. Was mainting FC levels for the correct CYA levels. I had to go out of town for a week. During that week, my wife did an awesome job testing the pool in the morning and at night and was adding the proper amount of chlorine. I had to order new CYA solution as I ran out. Tested it tonight at it’s around 10ish. I understand that cya loss can be elevated a little during a slam. But I don’t have any leaks. We had zero rain the entire time I was gone. I’m at a loss. The solution is good till 8/24. Why am I loosing so much CYA? I’m now 2 full weeks into the slam as well