Everything seems to be working. The dead algae is collecting on the bottom of the pool and I'll vacuum to waste. I was getting the TC number from the DPD-FAS test. I didn't realize it was redundant if you combined the FC + CC. Sorry about the confusion. I've downloaded and installed the beachcalc program.

I've dumped 3 more boxes of borax in the pool and the pH hasn't even twitched. Apparently, my pH was ridiculously low. I'll continue to pour borax in and keep the chlorine up. Thanks for all the help.