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Good pH test for slightly color-impaired eyes
I bought these to get a more legible method of reading my hot tub/spa pH. I am slightly color-blind, and the Aqua-Chek strips weren't easy enough to read in the pH scale. These offer a three-color match and are pretty easy to use. They seem accurate enough for my purposes. I've had some people with better eyes compare them with other strips and they compared OK.
[Wednesday, September 03, 2008]
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