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I'm red/green colorblind so can't use color comparators. I run a commercial pool, and when I started we had a Taylor K-2005C service kit. I relied on my three non-vision-impaired workers to check the results. They frequently came up with FC higher than TC, and their results differed among...

Hi, everyone. I've been a pool operator for a few years, certified for a few months, and trying to grasp as much as I can ASAP. I'm certified in drinking water and wastewater systems also; there is a lot of overlap but much that's new to me as well. My pool is filled & heated w/ mineral water...