Sue,

1. I'm puzzled about your pH. What have you been doing to move it? What do you mean "it won't stabilize"? What pH are you shooting for?

2. I'm gonna' suggest a big dose of Chlorine for your pool but not 'til we get a better idea of what's up with your pH.

3. Your other numbers are fine and we'll help with your CYA but I'd like that info on pH first.

4. As an aside, how have you handled CYA in the past?