I have a test kit called 'Blue Devil'. I used it and got the following results:
CC = 1
regarding the CC and FC, the test said that as soon as the reagent is added, the color shown is the FC and then to wait 2+ mins and it will show you what the CC is. To me, the color seemed to stay the same from immediately on to about 5 mins, which was at 1.0
PH was below what the color chart measured. I did the base demand test. It took 4 drops to get the PH level to ideal. The chart in the book says for 4 drops for 13500k gallons is about 1.5lb of soda ash.
TA (total alkalinity) looks to be 160ppm
CYA = 40, but could slowly rise a bit more as it's only been a couple of days since I've been adding CYA only a little at a time to the skimmer.
I don't need to test for calcium for an AGP right?
The water looks great, sparkling clear but I know that could change so what do I first need to work on?