I understand the concept of breakpoint chlorination, I could swear that I read a post by Ben a few years ago that he didn't beieve in the process of breakpoint chlorination, he made mention of CC will be broken down by sunlight - I guess I'm mistaken.

The K-2005 kit has an increment at 0.5 PPM and I can see that. I did check for CC when my chlorine was 0 and had none. I stopped checking my CC based on the above info. I do throw in 2x the normal chlorine at times to kill anything that hasn't been killed. I should have checked that my CYA was still there and probably should have shocked the heck out of the pool in the beginning of the season.

It definately is a learning experience.