From pool school regarding CYA
http://www.troublefreepool.com/started-shocking-need-pointers-t47681.html
Basically my parents hired some people to open my pool. Pre-open CYA was 0. I don't know what they used to shock it, but assume (due to some educated guessing) there was CYA in it. They worked on it Monday, I retested the water again this afternoon and CYA was still at 0. My question is should this gradually appear in testing? Or would it all appear at once?
For the full story readSolid stabilizer can take up to a week to fully register on the test
http://www.troublefreepool.com/started-shocking-need-pointers-t47681.html
Basically my parents hired some people to open my pool. Pre-open CYA was 0. I don't know what they used to shock it, but assume (due to some educated guessing) there was CYA in it. They worked on it Monday, I retested the water again this afternoon and CYA was still at 0. My question is should this gradually appear in testing? Or would it all appear at once?