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  1. Pietecasius

    Pool Math App question

    How do i change the Free Chlorine range in the pool math app? It is set for 1-3ppm, and based on a Salt pool with a target CYA of 70, my range should be 3-5 (according to TFP CYA/FC chart) I can’t figure out how to change the range in the app. Thanks in advance for any help!