I have a K-2006 test kit. Here are my numbers...
FC - 2.5 (just added enough to get back to 7)
CC - 0
pH - 7.2
TA - 40
CH - 50
CYA - 50... here's the question, I ran out of solution. I filled tube to the 7 mark and had enough solution to fill halfway between 7 and 14 and it still came out 50. Would the solution be dilluted bc of having more water than solution? Is 50 still a valid reading or would you say it's higher?
Also, should I raise TA and/or CH. (I have a vinyl liner.) I also struggle keeping pH at the 7.2/7.4 range. It likes to jump to 8 quite often.