We got the R-7065 test in the mail today. I was excited to get it because I wanted to ensure we have been doing the CYA test correctly. Now that we have done it we are confused. My husband and I both did the test separately. In fact, I did not tell him it was water set to 50. He thought he was testing our pool water. Both of us came up with 40 as our result. When we poured it to the 50 line and looked at it, we could still see the dot.
We were under the impression it was when the dot disappears. Is that not the case? Is it when it starts to get blurry/obscured?
We truly had no problem seeing it at 50 so now we have no clue what our CYA is.
Any advice is appreciated!