Thanks Carl & Evan. Just the info I needed! My previous pool and I had a nice "understanding" and we got along just fine with no problems...also an inground gunite, although with a different finish, and the same brand SWG.

But this pool is in a totally different environment, so I'm not as confident in my approach, especially when the CYA is approaching 100 whereas my last pool ran nicely at about 60 - with SWG. From my limited experience, I think there's a sweet spot with every pool where it likes to settle, as far as readings are concerned. I knew my last pool...now I just have to get acquainted with this one.

And, Evan, you mean this isn't the rainy season yet???!!!