Thanks for your help!

I got the water capacity from the intex website, I am assuming since the walls of the pool slope inward the equation for volume can't be used.

I added 3 lbs of baking soda and 1 cup of borax yesterday. This mornings readings are
FC 2 added 1 1/2 cups
CC 0
pH 7.2 added 1/2 cup borax
TA 90