In my original test the numbers were:

FC 2
TC 3
CC 1
Ph 8.0
Alk 130
Cal 230

Now I am at:

TC 2
FC 1
CC 1
Ph 7.2
Alk 110
Cal 230
CYA 80

(20 x 40 gunite IG pool approx 30,000 gallons)


What should I do next? I am assuming I need to drain some of the water to get the CYA down - any ideas approximately how much to drain? After which I can begin to add chlorine I bought 20 gls of liquid at the pool store yesterday - it was on sale.