I recently replastered my pool with an exposed aggregage similar to pebble tec. I am using Chlor Brite for chlorine treatment and I have a LaMotte ColorQ tester. Pool chemistry has been consistently very good: PH 7.5, ALY 88 to 100, CH 210, but CYA (cyanuric acid) recent average has been around 90ppm (30-50ppm recommended) with the last two at 101 and 98. Has anyone else experienced this using Chlor Brite? Any other ideas how to deal with this issue of rising CYA?