First testing with K-2006

[BigDave]

I think you may be doing the CC test incorrectly. To review:
1)Add a scoop or two of DPD powder (R-0870) to 10ml sample. If it turns pink you have FC, do step 1.1. Otherwise FC=0, skip 1.1.
1.1)Add drops of R-0871 counting drops and swirling until pink turns clear. Multiply drop count by 0.5 to get FC in ppm.
2)Add 5 drops R-0003 to sample and swirl. If it turns pink you have CC, do step 2.1. Otherwise CC=0, skip 2.1.
2.1)Add drops of R-0871 counting drops and swirling until pink turns clear. Multiply drop count by 0.5 to get CC in ppm.

I think you should stop adding Borax until pH gets to 7.4.

No need to test for CYA until you've used up a few pounds of dichlor, I'd wait until I used about eight pounds of dichlor before testing again.