Things have been going well - my pool is clear & blue, the chlorine levels are good, the pH is perfect, the alkalinity is still a tad high (140) but way better. Life is good.

Now, I need to deal with the CYA. I've been functioning with almost no CYA reading. I tested tonight, and even with the tube filled to the tippy top, it was only slightly cloudy. I could still see the little black dot just fine.

How do I raise the CYA? I know I need to be careful not to get it too high. How do I determine that when I can't determine the exact amount that's in there? Pool store?

Thanks so much,

Jennifer