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#198387 - 05/27/17 10:23 PM Storing water in Copper pots Kills Bacteria...
billstephenson Offline
Moderator

Registered: 02/07/07
Posts: 3865
Loc: Ozark Mountains in SW Missouri
Found this info linked on the "Hacker News" site and thought I'd share it here for discussion.

I don't carry metal water bottles anymore but it's an interesting avenue to explore. For example, a copper flashed cooking pot would work in a pinch.

Copper pots Kills Bacteria : National Center for Biotechnology Information
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#198409 - 06/02/17 09:38 AM Re: Storing water in Copper pots Kills Bacteria... [Re: billstephenson]
balzaccom Offline
member

Registered: 04/06/09
Posts: 1719
Loc: Napa, CA
What if you just stuck a piece of copper in one of your water bottles? How long would it take to decontaminate it?
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#198420 - 06/05/17 11:41 AM Re: Storing water in Copper pots Kills Bacteria... [Re: balzaccom]
dzierzak Offline
member

Registered: 07/18/07
Posts: 43
Loc: WV
I think it needs more research.

"When drinking-water (pH 7.83±0.4; source: ground) was contaminated with 500 CFU/mL of the above bacteria and stored in copper pots for 16 hours at room temperature, no bacteria could be recovered on the culture medium."

I'd rather not wait for 16 hours for a drink of water. Does sound promising, though.

Another one. Still is overnight.

It would be interesting to find the minimum time necessary and whether it works for Giardia, Crypto and others.


Edited by dzierzak (06/05/17 11:57 AM)

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#198442 - 06/07/17 06:33 PM Re: Storing water in Copper pots Kills Bacteria... [Re: dzierzak]
41253 Offline
member

Registered: 12/28/14
Posts: 64
I'm curious about taste of water sufficiently treated this way. Once I was near about Mile 20 of the Ouachita Trail and found a signed spring flowing from a metal pipe and was so happy that I dumped my one bottle full of nasty tap water and filled it from the spring. It tasted like a mouthful of pennies. In a few hundred yards I dumped that and replaced it with very nice creek water. Now I taste before dumping old water.

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#198491 - 06/18/17 03:24 AM Re: Storing water in Copper pots Kills Bacteria... [Re: balzaccom]
billstephenson Offline
Moderator

Registered: 02/07/07
Posts: 3865
Loc: Ozark Mountains in SW Missouri
Quote:
What if you just stuck a piece of copper in one of your water bottles? How long would it take to decontaminate it?


Well that's a good line to follow.

I don't think it would flavor the water much. I've lived in houses with copper pipes and never noticed it.

If you filled a few bottles with creek water before dark and used them the next day the timeframe wouldn't be much of an issue.
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#198776 - 07/18/17 05:26 PM Re: Storing water in Copper pots Kills Bacteria... [Re: billstephenson]
coyotemaster Offline
member

Registered: 03/07/06
Posts: 294
Loc: Arizona
Makes me wonder about the efficacy of a twisted wad of copper and silver wires left in a bottle?

99.9% pure copper

99.99% pure silver wire


Edited by coyotemaster (07/18/17 05:28 PM)

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#198779 - 07/19/17 07:29 AM Re: Storing water in Copper pots Kills Bacteria... [Re: coyotemaster]
dzierzak Offline
member

Registered: 07/18/07
Posts: 43
Loc: WV
We'd still need to determine minimum contact time.

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#199069 - 09/10/17 08:21 PM Re: Storing water in Copper pots Kills Bacteria... [Re: coyotemaster]
billstephenson Offline
Moderator

Registered: 02/07/07
Posts: 3865
Loc: Ozark Mountains in SW Missouri
Originally Posted By coyotemaster
Makes me wonder about the efficacy of a twisted wad of copper and silver wires left in a bottle?


That makes a lot sense. More surface area contact with the water and nasties in it.

Something like a steel wool would probably work pretty good.
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