For most people: 24 hours in an open container does the job. For impatient people: use heat, aeration, or sunlight. For chloramine folks: just buy the dang conditioner.
My goldfish Bubbles eventually forgave me. He lived to be five, which is ancient for a fish, so I think he appreciated my newfound knowledge. Now I keep a pitcher of dechlorinated water on the counter at all times.
So, how long for chlorine to evaporate? Long enough to make you rethink your life choices. Start your process today, and by tomorrow, you’ll have water that won’t traumatize any aquatic friends. You’re welcome.
