BB Method (Instead of BBB)

[mfhache]

And, not only what their test comes up with, but how they do it. (Some pool stores have fancy-smancy computerized test readers that seem to give such accurate readings to two decimal places but..... in actuality they aren't too accurate, unfortunately.) Hopefully, they do the disappearing black dot test. Ask them.

Will do. Heading there after work to get a jug of Chlorine.