Author Topic: chlorine evaporation rate  (Read 748 times)

Offline Steve Ruch

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chlorine evaporation rate
« on: January 19, 2015, 10:55:14 PM »
How long do you have to leave water with chlorine setting out before the chlorine is gone?
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Offline denny

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Re: chlorine evaporation rate
« Reply #1 on: January 19, 2015, 11:10:25 PM »
What I always hear is "overnight".
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Offline a10t2

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Re: chlorine evaporation rate
« Reply #2 on: January 20, 2015, 02:54:31 PM »
If you're brewing with it, not at all. Heating the water to strike temperatures will drive off essentially all the chlorine.

If you have *chloramines* in the water, which most big utilities have switched to, then you'll have to treat the water chemically. One Campden tablet will treat 20-60 gal of water depending on the concentration.
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Offline Steve Ruch

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Re: chlorine evaporation rate
« Reply #3 on: January 20, 2015, 10:15:35 PM »
If you're brewing with it, not at all. Heating the water to strike temperatures will drive off essentially all the chlorine.

If you have *chloramines* in the water, which most big utilities have switched to, then you'll have to treat the water chemically. One Campden tablet will treat 20-60 gal of water depending on the concentration.

The local water company mentions chlorine and not chloramines.
Crescent City, CA

I love to go swimmin'
with hairy old women

Offline Steve Ruch

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Re: chlorine evaporation rate
« Reply #4 on: January 20, 2015, 10:16:47 PM »
What I always hear is "overnight".
I set out a five gallon bucket of water and the next day I couldn't detect any chlorine.
Crescent City, CA

I love to go swimmin'
with hairy old women

Offline EHall

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Re: chlorine evaporation rate
« Reply #5 on: January 22, 2015, 09:21:51 PM »
setting it in the sun will evaporate it faster too.
Phoenix, AZ

Offline leejoreilly

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Re: chlorine evaporation rate
« Reply #6 on: January 22, 2015, 09:53:23 PM »
setting it in the sun will evaporate it faster too.

What is this "sun" thing of which you speak? Certainly not a thing that is seen in Michigan during wintertime...

Offline Steve Ruch

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Re: chlorine evaporation rate
« Reply #7 on: January 22, 2015, 10:15:23 PM »
setting it in the sun will evaporate it faster too.

What is this "sun" thing of which you speak? Certainly not a thing that is seen in Michigan during wintertime...
It's due to make it's January appearance in my neck of the woods either tomorrow or the next day.
Crescent City, CA

I love to go swimmin'
with hairy old women