Here are my numbers this morning:
FC = 5.5
CC = 0.5
PH = 7.4
CYA = 25
TA = 130
CH = 100
OCLT = 0.5
24-hour chlorine loss = 2ppm
I just did a total refill last weekend and water is crystal clear. I added granular CYA with the sock method Mon/Tues, so it has been about four days since the powder was totally dissolved into the pool, and I've run the filter a lot. I'm getting about 25 CYA and want to increase to 50, so I need about 3 more pounds, but is it worth waiting a few more days and testing it again first?
The bigger question is the Calcium Hardness. I was very surprised, since I live in Phoenix, AZ, to see only 100ppm come out of the tap, but it all depends on the time of year I guess. Do I need to increase, or just adjust pH to get my CSI into a safe zone, considering the hardness will skyrocket over the next year or two on its own?
Also, going on vacation next Friday for five days, so I'm thinking of dumping four gallons of 10% HASA liquid chlorine. Thought about tossing some pucks in as well, and calculating the slight CYA spike they will provide.