I need to bring my CYA up a bit (it was at 30 and I was burning through Chlorine) before you ask - I did SLAM, and passed all three tests - OCLT was <1ppm.
Anyhow, I added some a day ago, and went to re-test and noticed a small improvement. I was in the process of adding more and I put it in a bucket and added water first. Surprise surprise it just sat there.
This was a major epiphany for me. CYA takes several days to dissolve and therefore, you shouldn't keep adding more to get to your target without letting a day or three pass between dosing.
Am I correct in my thought process? (The last thing I want to do is over dose my pool on CYA. Last time I did that I had to drain part of it!)