Hi ya'll, like the site a lot and learned a lot from it. I got burned by my pool builder who abandoned the job at the end and one of the things I had to learn on my own was pool school which lead me to here. I have a few questions on the kit which I can't seem to clarify on my own.
When I take the FC sample, the kit directions say for each drop multiply by 0.5ppm. If I have, say 60 drops to get my color change, that would make my ppm 30. That's 30ppm, not 3ppm like the same pool sample reading that the pool store says it is. Is it 30ppm or is it 3ppm? The pool water both smells and tastes good so I have to believe it is 3 and not the higher number.
My second question relates to the CYA readings. When I mix the water and the regents and pour into the comparator tube and watch the black dot disappear it doesn't reach any of the numbers on the side of the tube and it's never equal to the pool store numbers. Are the pool store numbers off this much? Never having got any hands on training from the experts has me wondering. Thanks.
Temperature 88 F
FC 3ppm or 30ppm?
CYA 50 I think