I have a very difficult time reading my CYA due to my poor vision. I thought I would take (2) water samples to (2) different places and take an average of the (2). Well, once the (2) varied so greatly, I stopped home and refilled the bottles and went to (2) additional pool stores. The picture is a breakdown of how different results can be when you take your pool water to the store to get tested. Just thought I’d share…
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