My TF100 kit arrived today.
TC was > 5 (off the scale, maybe around 7 if I had to guess)
Ph = 7.2
CYA = 20 (the dot disappeared around 20)
CH = 120
TA = 100
Almost there. I need to bump the CH up because it is a plaster pool. The Ph could use a little boost too.
My CYA was zero when I opened last Thursday. I let a sock of 4 lbs. CYA granules dissolve on Friday, so, it has only been 3 days. I'm going to leave it alone and see if it comes up over the next few days (I'll let the trichlor pucks in the in-line chlorinator bring it up over the next few days then shut it down when it gets to around 40).
The water is nice and clear and 75 deg. F.