Waterbear,

I tested with the K-2006 kit this morning. TA is 90, pH 7.4, CH 280, FC 7.0 (the pool's still coming off Sunday's shocking), CC 0.5 (I didn't re-test CYA because it uses so much reagent).

This weekend, when I have the pros re-test the water, I'll test my CYA and do what's necessary to boost up the CYA so I can keep the FC around 4 PPM.

I got the idea that you shock a pool on a regular basis because the Pinch-a-Penny test results print-out says that that's one of the ABC's for a healthy pool -- you shock it once a week. I'm intrigued that you and others don't do this, yet don't have troubles with your pool. I thought that over time the combined chlorine becomes a problem, so shocking weekly pretty much elminates any CC you have in the water? If you only shock when the CC reaches some threshold, what is that threshold?