Thanks for the Reply.

I use Lamotte ColorQ Pro 7 test kit. It has always been fairly accurate and I have never had any problems with the numbers. To test for FC above 10, I use the shot glass method. I use chlorine neutrilizing drops when testing pH and Alkalinity at high chlorine levels.

I already have my FC at 20. It was at 40 or more for 4 days already. So you think I should just keep it at 20 or higher for a longer period of time.

I think I will wait on adding the CYA until after my CC is eliminated.

Thanks!!