yesterday i took a water sample into shasta pools service center. they suggested that i add 1 pt. of acid.
i tested the water early this afternoon - low total chlorine(don't remember free chlorine). i added 3 disks.
now roughly 4 hrs. later everything is fine except for free chlorine(reads as "0").
is it alright to swim or should i wait until tomorrow afternoon?
thanks for your assistance.
no free chlorine - can i swim?
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