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The real water treatment deal
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Troy Ammons
(tammons) - F
The real water treatment deal on 06/12/2011 20:29:48 MDT Print View

Maybe this is what you are looking for ??

http://cfpub.epa.gov/ncer_abstracts/index.cfm/fuseaction/display.abstractDetail/abstract/8963/report/0

Quote...

"Several recent studies suggest that approximately 20 percent of the surface and ground source waters in the U.S. are contaminated with viruses"

My preference now is a Sawyer .1 filter and chlorine for the viruses. I just set up a geigerrig pressure bag and a sawyer 3 way filter. Not SUL but nice.

I have been using a slow gravity feed Aquamira frontier pro and chlorine, but at 3 microns I dont trust it.

I am working on another rig that will be lighter. Basically a Sawyer squeeze .1 filter with a couple of 1L platys. Should be about 7oz total without the chlorine.

Edited by tammons on 06/12/2011 20:30:53 MDT.

Tom Kirchner
(ouzel) - MLife

Locale: Pacific Northwest/Sierra
Re: Re: Re: Re: The real water treatment deal on 06/13/2011 17:57:09 MDT Print View

"Is the American education system that appallingly bad that basic personal hygeine concepts are not taught?????"

Yes.


"OK, OK, I'm an obnoxious Australian. Forgive me."

Keep up the good work!

"Medically speaking, they are symbiotic with you."

They outnumber the cells in our Body.

Cheers

Troy Ammons
(tammons) - F
The real water treatment deal on 06/13/2011 18:13:46 MDT Print View

There are several billion people worldwide that dont have a clue how there bodies work, including Australia. Food goes in and p00p goes out and thats about it, much less daily hygiene.

God just look at the condition of the Ganges river and people bath in it every day.

Edited by tammons on 06/13/2011 18:14:16 MDT.

George Matthews
(gmatthews) - MLife
Re: obnoxious Australian on 06/13/2011 18:15:42 MDT Print View

redundant?


: )

George Matthews
(gmatthews) - MLife
Re: The real water treatment deal on 06/13/2011 18:17:31 MDT Print View

>> Food goes in and p00p goes out

Yes, for now, but after Climate Change kicks in fully, that, sadly, will reverse.

Troy Ammons
(tammons) - F
Re: Re: The real water treatment deal on 06/13/2011 18:33:14 MDT Print View

Interesting point.

Doug I.
(idester) - MLife

Locale: MidAtlantic
Re: The real water treatment deal on 06/13/2011 18:35:05 MDT Print View

"Food goes in and p00p goes out and thats about it"

Wait, are you saying those two things are related?

Doh! But of course! How did I miss that one!

Steven McAllister
(brooklynkayak) - MLife

Locale: Atlantic North East
UV on 06/13/2011 18:59:36 MDT Print View

All this talk about filters and chemicals. UV is the only practical method as it takes care of all the baddies. Boiling is also good, but time consuming.

Of course you must pre-filter if the water is turbid when using UV, but who is not going to do that anyway. If you don't pre-filter turbid water, you plug up your pump filter. If you don't filter before using chemicals, you slow the process and also the water will be yucky to drink.

Troy Ammons
(tammons) - F
The real water treatment deal on 06/13/2011 19:09:11 MDT Print View

While looking around I read a few things about UV water treatment that I did not know.

Talking handheld UV, not commercial.

It shuts down the organisms reproductive system but does not kill the bug.
No big deal if it cant reproduce in your system you pass it and its done.

Giardia and Cryptosporidium is easier to disable than Bacteria.

Also stated that if the treated water is left in the light that the organisms reproductive systems can regenerate and turn back on, which makes no sense to me, but so be it. Said to keep your UV treated water in the dark or in a lightproof container.

Still think its safest to filter to .1 then UV or chem the viruses.

Doug I.
(idester) - MLife

Locale: MidAtlantic
Re: The real water treatment deal on 06/13/2011 19:13:11 MDT Print View

"Also stated that if the treated water is left in the light that the organisms reproductive systems can regenerate and turn back on, which makes no sense to me, but so be it. Said to keep your UV treated water in the dark or in a lightproof container."

Wow, if this is true then I've either been really lucky or didn't really need to treat the water, because I never do this. Where did you read that Troy?

Steven McAllister
(brooklynkayak) - MLife

Locale: Atlantic North East
Visible Light on 06/13/2011 19:19:42 MDT Print View

Yes, a biological fact. UV light makes it impossible for organisms to reproduce, but visible light can help repair and stimulate life in damaged cells.

So yes, keep your treated water in your pack, or at least in the shade.

Troy Ammons
(tammons) - F
Re: Re: The real water treatment deal on 06/13/2011 19:23:53 MDT Print View

I doubt its going to be an issue unless you store it for a good while.
Dont know what the timeframe is for regeneration.

No wonder cavemen life expectancy was 20.
Its a Wiki article but its got some interesting info in it.

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

Edited by tammons on 06/13/2011 19:24:42 MDT.

Tom Kirchner
(ouzel) - MLife

Locale: Pacific Northwest/Sierra
Re: The real water treatment deal on 06/13/2011 19:52:17 MDT Print View

"God just look at the condition of the Ganges river and people bath in it every day"

They bathe in the only water available to them, but at least they have the good sense to not eat with the hand they clean their butts with. Which is apparently more than we can say for many backpackers.

Mike Clelland
(mikeclelland) - MLife

Locale: The Tetons (via Idaho)
My favorite article EVER on 06/13/2011 20:07:55 MDT Print View

My favorite article EVER on BPL!

Sipping the Waters: Techniques for Selecting Untreated Backcountry Water for Drinking

by Michael von Gortler, MD | 2006-Sept

LINK:
http://www.backpackinglight.com/cgi-bin/backpackinglight/sipping_water_drinking_untreated_backcountry_water.html

Craig W.
(xnomanx) - F - M
Re: My favorite article EVER on 06/13/2011 20:33:53 MDT Print View

Thank you for that link Mike, never saw that article back in the day.