CYA Test reading -- opinions?

JaySee

Well-known member
Jun 29, 2021
65
Toronto
Pool Size
70000
Surface
Vinyl
Chlorine
Liquid Chlorine
Hi all,
As mentioned on the forum several times the Taylor CYA test is the least precise and I've always had trouble/ self-doubt trying to accurately gauge my CYA levels which always reads on the low side in my seasonal pool.

What are your opinions on the reading of this test? The water level is at the top of the beaker (25?) Back to sun, standing in shade. Is it at 25? Or since the dot is still kind of visible, lower? Between 25/30/40 the difference in cloudiness is miniscule with the dot still somewhat visible at each.

Thanks!

CYA Test.jpeg
 
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