Just slammed my pool. Have achieved good water clarity and only lost 1 ppm chlorine in overnight test. My current FC level is 25. Kids wanna swim today for Memorial Day. Is water dangerous for swimming?
A CYA of 55 is rounded up to 60. The SLAM level FC for a CYA of 60 is 24 ppm.
You can safely swim in a pool as long as the FC is above the minimum and at or below SLAM level based on your CYA. You must also be able to see the bottom of the pool in the deep end of the pool.
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