Water wasn't as dirty as I thought it was but numbers are off.

Free/CC - 0 ppm
Water pH - 7.0
Total Alkalinity - 20 ppm
CYA - 0 ppm

Should I first add some baking soda to get my pH up some? I could have sworn I seen an excel sheet somewhere here that told me an estimate of how much I thought.

Also, what about Alkalinity? I've never seen it this low before.