I am starting to think that a cya of 60 is a bad place to be because using Ben's
chart it puts me at the bottom value that requires 5 to 10 ppm cl
Could you help me out with the testing method?
Testing at 7pm with my back to the sun I test 60-65 cya
At 2pm back to the sun 55-60ppm, and if I face the sun I can squeeze out 45 -50 ppm.
Can I use lower scale of 3-6 ppm?
That would probably save me half....