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#95378 - 05/23/07 04:33 PM Re: Survival Straws: Are They Worth It ? [Re: NightHiker]
adam Offline
Enthusiast

Registered: 04/07/03
Posts: 256
Loc: Long Island, NY
[quote=NightHikerI've used the katadyn xtreme bottle filter before and was expecting about the same but there's a lot less resistance.[/quote]

I used the original extreme bottle filter - it lasted only one trip. To much work to drink water.

Adam

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#95604 - 05/25/07 05:36 PM Re: Survival Straws: Are They Worth It ? [Re: Leigh_Ratcliffe]
BigCityHillbilly Offline
Journeyman

Registered: 05/19/07
Posts: 63
< "Fortunately most viruses are easy to kill with chemical purification." >


I'd REALLY like to know if you can kill viruses simply by boiling the water.

Does anybody know if boiling water kills viruses ?

LW.

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#95612 - 05/25/07 06:57 PM Re: Survival Straws: Are They Worth It ? [Re: BigCityHillbilly]
paramedicpete Offline
Pooh-Bah

Registered: 04/09/02
Posts: 1920
Loc: Frederick, Maryland
The short answer is yes.

Keep in mind that not all viruses are created equal; there are both RNA and DNA viruses and enveloped and non-enveloped viruses. These factors are more important with chemical disinfectants/sterilents and the such. Many viruses are inactivated by simply becoming exposed to less then ideal (for the virus) environmental conditions such dehydration or exposure to UV.

Some bacteria (spore forming- i.e. some Bacillus spp.) are more resistant to adverse environmental factors and may require either greater lengths of time, higher pressures (use of pressure cooker or autoclave) or higher temperatures (dry heat) to achieve organism destruction.

Pete

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#95616 - 05/25/07 07:27 PM Re: Survival Straws: Are They Worth It ? [Re: paramedicpete]
Tjin Online   content
Pooh-Bah

Registered: 04/08/02
Posts: 1781
if you use a straw, make sure they water is CLEAR, not just clear but very very very clear or else it will clogg very quickly.
_________________________


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#95649 - 05/26/07 03:38 AM Re: Survival Straws: Are They Worth It ? [Re: BigCityHillbilly]
jdobbs2001 Offline
stranger

Registered: 05/21/07
Posts: 11
Would you trust one to protect you against Cholera? I sure as hell won't.

http://en.wikipedia.org/wiki/Cholera

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#95773 - 05/27/07 06:06 PM Re: Survival Straws: Are They Worth It ? [Re: adam]
BigCityHillbilly Offline
Journeyman

Registered: 05/19/07
Posts: 63
Has anyone tried the "first need" water purifier by General Ecology ?

There's at least one survival author who says that nothing beats it.

How about the Katadyn pocket filter ? It retails for a couple of hundred bucks at REI. Mucho expensive.

LW.

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#95802 - 05/28/07 05:23 AM Re: Survival Straws: Are They Worth It ? [Re: Ponce]
kharrell Offline
Typical Survival Victim


Registered: 02/10/07
Posts: 51
Originally Posted By: Ponce
two silver rods and three nine volts connected in line it will kill all bugs.


Any references to this process?

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#95824 - 05/28/07 03:35 PM Re: Survival Straws: Are They Worth It ? [Re: BigCityHillbilly]
Leigh_Ratcliffe Offline
Veteran

Registered: 03/31/06
Posts: 1355
Loc: United Kingdom.
Originally Posted By: BigCityHillbilly
< "Fortunately most viruses are easy to kill with chemical purification." >


I'd REALLY like to know if you can kill viruses simply by boiling the water.

Does anybody know if boiling water kills viruses ?

LW.


A roiling boil will kill just about anything. It is always the first choice for water sterilisation. However, the tactical situation might prevent you from lighting a fire. That might be due to lack of fuel, Altitude (Water boil's at a lower temperature at higher altitudes). A need for concealment or some other reason. Use of a filter therefor, presumes an inability to boil.
_________________________
I don't do dumb & helpless.

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