what aylad said...
1 gal bleach in 20k gallon pool only adds 3 ppm FC, so you've added 15ppm. some of that was used converting CC, and some lost to sun, so 11.5 is about right.
If CC <1 and FC holds, you don't need to shock
Re: chlorine
what aylad said...
1 gal bleach in 20k gallon pool only adds 3 ppm FC, so you've added 15ppm. some of that was used converting CC, and some lost to sun, so 11.5 is about right.
If CC <1 and FC holds, you don't need to shock
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