Thanks for your info, watermom! I use the Taylor K-2006 Complete FAS-DPD chlorine test kit, but since I'm ready for new reagents I'll be checking into Ben's kit. I don't normally check the combined chlorine, but I just did and it is 0 -- so I guess that's a good thing.

I wasn't sure if it was okay to add the stabilizer right now or not, because on the stabilizer package it says to get the chlorine in the appropriate range first -- since I'm shocking it right now and the chlorine level is so high I didn't know if I'd be screwing the chemicals up in my pool by adding it now.