#100863 - 07/26/07 05:25 PM
US Mil. test results on commercial water products
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INTERCEPTOR
Carpal Tunnel
Registered: 07/15/02
Posts: 3760
Loc: TX
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Test results of readily available water purification products. -Blast
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#100865 - 07/26/07 05:55 PM
Re: US Mil. test results on commercial water products
[Re: Blast]
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Enthusiast
Registered: 04/26/07
Posts: 266
Loc: Ohio, USA
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Great post, good info - thanks, Blast.
Frank2135
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All we can do is all we can do.
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#100877 - 07/26/07 07:37 PM
Re: US Mil. test results on commercial water products
[Re: Frank2135]
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Enthusiast
Registered: 01/12/05
Posts: 248
Loc: Oklahoma
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Great information Blast.
I went throught the list and I feel that one thing should be mentioned. The MSR Sweetwater Purifier is a rip off.
Ok, take a look at what it claims...if you go to REI.com and check it out, in order to completely purifer the water, you pump it and then add the MSR Purifier solution to the water. Hmmmm...I wonder what the solution is that REI is selling for $10 for a 2 ounce bottle....IT'S BLEACH..holy crap I think to myself. Take a look at a large view of the bottle..it clearly lists the ingredients as Sodium Hypochlorite (bleach) and other ingredients. They are getting 10 bucks for 2 0z of this stuff because the general public doesn't know the good ole chlorox will do it for way cheaper.
So technically...any of the water filters listed could be considered purifiers if they would just include a 2 oz bottle of bleach with each one. Good grief.
Incidentally, prior to PUR selling out to Katadyn, they did manufacture the GUIDE which did have a Iodine based filter that really did purify the water. Hence all the warnings that GUIDE replacement filters will not purify water. I have one and a couple of the filters that have never been opened. Sort of saving them for an emergency if you know what I mean. Was curious how long they might last unopened. Any guesses?
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Get busy living...or get busy dying!
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#100879 - 07/26/07 07:57 PM
Re: US Mil. test results on commercial water products
[Re: Hghvlocity]
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Old Hand
Registered: 12/14/05
Posts: 988
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I didn't see a guide to what the x's checks and triple checks mean..any help?
tro
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#100882 - 07/26/07 08:15 PM
Re: US Mil. test results on commercial water produ
[Re: teacher]
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Old Hand
Registered: 11/26/06
Posts: 724
Loc: Sterling, Virginia, United Sta...
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I didn't see a guide to what the x's checks and triple checks mean..any help?
tro If you click on the check or "X" symbols, they will give you the following descriptions: Three checks means we expect the device to consistently provide adequate protection from microbial pathogen groups by achieving at least a 6-log bacteria, 4-log virus, 3-log Giardia cyst, or 3-log Cryptosporidium oocyst reduction. Three checks are based on independent testing following the U.S. Environmental Protection Agency Guide Standard protocol under manufacturer-specified device operating conditions (e.g., production rate, capacity). For a more detailed explanation of the reduction ratings, click the Pathogen Reduction Ratings link on the left toolbar. One check means we expect the device to consistently provide adequate protection from specific pathogen groups by achieving at least a 6-log bacteria, 4-log virus, 3-log Giardia cyst, and 3-log Cryptosporidium oocyst reduction. There is a level of uncertainty in the effectiveness of the device because there is no device-specific testing data following the U.S. Environmental Protection Agency Guide Standard protocol. One check is based either on the evaluation of general scientific knowledge of this treatment technology or on device-specific testing not following the USEPA Guide Standard. For a more detailed explanation of the reduction ratings, click the Pathogen Reduction Ratings link on the left toolbar. [X] Means we do not expect the device to consistently provide adequate protection from microbial pathogen groups. This is based on available data, lack of data, and/or general scientific knowledge of the treatment technology. A device containing an X requires additional treatment to minimize the risk of illness from waterborne pathogens. For a more detailed explanation of the reduction ratings, click the Pathogen Reduction Ratings link on the left toolbar.
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“Hiking is just walking where it’s okay to pee. Sometimes old people hike by mistake.” — Demitri Martin
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#100885 - 07/26/07 09:39 PM
Re: US Mil. test results on commercial water produ
[Re: JCWohlschlag]
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Enthusiast
Registered: 01/12/05
Posts: 248
Loc: Oklahoma
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That's why it's so interesting that the Sweetwater get three check marks...it does require additional additional treatment in the form of some squirts from the bleach bottle.
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Get busy living...or get busy dying!
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#100887 - 07/26/07 09:44 PM
Re: US Mil. test results on commercial water products
[Re: Hghvlocity]
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"Be Prepared"
Pooh-Bah
Registered: 06/26/04
Posts: 2210
Loc: NE Wisconsin
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That is interesting. I'd not seen that product to go along with the Sweetwater filter. I have a filter, but I've switched to carrying the MSR Miox instead. The mixed chlorine dioxide solution the Miox creates provides better killing power than chlorine bleach AND I don't have to carry a bottle of nasty stuff (bleach) in my bag. The Miox didn't get a very good rating for Cryptosporidium. They say the MSR Miox recommended procedure didn't really give the required reduction in Crypto after 4 hours (while the Micropur tablets did). I really wish MSR or anyone would publish independent lab data to support or dispute this. For right now, based on what I've read about the Miox and the chances of encountering crypto in water in the U.S., I don't think I'll have any problems with the Miox.
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#100888 - 07/26/07 09:47 PM
Re: US Mil. test results on commercial water produ
[Re: Hghvlocity]
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Old Hand
Registered: 11/26/06
Posts: 724
Loc: Sterling, Virginia, United Sta...
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That's why it's so interesting that the Sweetwater get three check marks...it does require additional additional treatment in the form of some squirts from the bleach bottle. Yes, you are correct that the top ratings apply to the SweetWater System (filter and purification solution), however a little further down the list shows the ratings for the MSR SweetWater Microfilter alone. It still works pretty well, even without the purification solution.
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“Hiking is just walking where it’s okay to pee. Sometimes old people hike by mistake.” — Demitri Martin
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#100930 - 07/27/07 10:24 AM
Re: US Mil. test results on commercial water produ
[Re: JCWohlschlag]
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Member
Registered: 09/28/05
Posts: 133
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Talking of the selling of bleach at 10 dollars for 2oz: The special 'techwash' nikwax sell for washing proofed waterproofs is err... soap. Pure soap (available as 'soap flakes' in the UK) does the same job. And tests found that waterproofs can be reproofed with ordinary garment conditioner which works as well as the best waterproofer and better than most. Both sources are from Leeds University tests carried out for 'Trail' magazine. simon
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#100942 - 07/27/07 03:09 PM
Re: US Mil. test results on commercial water products
[Re: Blast]
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Ordinary Average Guy
Enthusiast
Registered: 04/26/06
Posts: 304
Loc: North Central Texas, USA
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Blast,
Thanks for posting this! I had stumbled across the page several months ago and lost the link.
This was one of the most complete reviews of water treatment filters/purifiers around. It certainly helped when I was trying to find solutions for my BOB.
- Brian
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Also known as BrianEagle. I just remembered my old password!
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