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    Safe to swim w/ FC > 10ppm?

    First time owning a pool this year, and it's been very educational! Thank you TFP Pool School! Short story: Do I understand this chart correctly... if the CYA level is 90 or above for a non-SWG pool, it's safe to swim with FC at 10ppm? pool-school/chlorine_cya_chart_shock Long story: Made the...