how long for chlorine to leave water
How long does it take chlorine to evaporate from tap water? The Chlorine will evaporate in about 24 hours. Chloramine, Fluoride, metals, and other nasties removed by the conditioner won't. Best to wait until you've gotten more conditioner before performing your water change. that water conditioner takes out a lot more things than just chlorine. but if you are only doing a small water change and you leave it out for 48 hours you should be fine Anonymous Â· 9 years ago 1