We added a 1/2 box borax around 8 am and after testing added the other half since pH is low. We received the Taylor K-2006 kit in the mail today, so here are the results after testing with it:

pH= 7.0
cya= 80
alkalinity= 150
free chlorine= 8 (10 mL sample, 16 drops * 0.5)
when we tested for combined chlorine in step 5 after adding the 5 drops of R-0003, the sample never turned pink it stayed clear. should I add more drops until it does turn pink or this won't happen because chlorine is too high?