OK here are my numbers as of this evening:
Cl 10 -12
pH 7.2 (will add more Borax tonight)
ALK 140 (up from 100 last night)
TH 0
CYA 80 (added 7 lbs this AM)

I'm still scrubing and vac'ing daily. Now that I have my CYA up can I still backwash?