S'me again, Margaret...... I would like to report that I have eliminated chlorine block using Ultra bleach and the BBB method. Now, my CYA is still sky high and I understand no chemicals will lower it.
Here's my question: Will it lower over time on it's own?
I looked for this for a long while and never saw a reference to it before I posed the question. I'm just thinking that it will lower over time provided the other chemicals are correct. I may be wrong and probably am. I have been lowering my pool about 8 inches at a time and re-filling with tap water to no avail. I won't even attempt to drain the pool on my on due to the problems I may cause with the vinyl liner. Bad news is no local pool companies around here want to do it either.
Now you know why I posed my question.
Thanks for any help - Jim