That time of year again.
Opening the pool and trying to get an initial test out of the way.
Im using the TFTest Kit bought new 1 year ago.
Last year I had a CYA of about 35.
Drained no more than 1/3 of total pool capacity during closing last year.
Open pool this year and get NO reading for CYA. The water doesnt even look cloudy in the test tube.
Kinda nervous now...am I doing something wrong, is my reading wrong, testing stuff expired?
Dont wanna try to raise the CYA reading more just to find out I needed to replace the test kit.
Thoughts would be appreciated.