Here are the updated test results using the new Taylor K2006 test kit:

Fc: 14.8
CC: 2.2
PH: below lowest level (when we did the Base demand test we needed 95 drops)
CYA: >100 (since 100 is the first mark, we are guessing ~110)
TA: 30-40

What should be addressed first? Increasing PH with sodium carbonate, or Increasing Alkalinity with Sodium Bicarbonate? Won't the Sodium Bicarbonate actually increase both? I used the calculator, and it looks like we should use around 22 pounds of Sodium Bicarbonate for the alkalinity.

Just want to be sure before we start.

Thanks for the help!