I will do that. In the meantime, is there a way to start lowering the cya number? I did my pH test with 50% distilled water and it still looks very high. I think I did all of that correctly, but my test kit book says that I may be bleaching out one of the reagents, which makes sense because I was getting a reading of 15 or 16. I don't know how to compensate for that. My total alkalinity is at 140. I hope I don't need to worry about the other numbers right now!? I am beginning to see the bottom of the pool! It's starting to work. Thank you, thank you.