Using Taylor CYA Test

[aylad]

I have some questions about conducting a Taylor CYA test (with the disappearing black dot.)

After waiting more than 30 seconds but no longer than 3 or 4 minutes, when I test inside the house, the dot disappears at between 65 and 70. If I test outside in natural light, the dot disappears between 45-50.

My question is, how and where should test? Which numbers are correct for me?

Thanks for the help,
Thelma

You're supposed to test in natural light--but the bottom line is that you need to test in consistently same light each time, whichever route you take. If you keep your chlorine in the 5-8 range, it really doesn't matter what the actual number is--CYA testing just gives you a ballpark, anyway.
I personally use the flourescent lights in my kitchen.

Janet