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Clark Fork
11-02-2005, 13:55
The folks at Backpacking Light are announcing a new product. Not many specific details but it is describing the product as a pre-mixed chlorine dioxide with a 15-min or so wait time. Could be just the ticket....




http://www.backpackinglight.com/cgi-bin/backpackinglight/chlorine_dioxide_clo2_water_treatment.html?m=wEPV3 0o65gz1bfzrQUnKHg


Regards,

Clark Fork in Western Montana "Where seldom is heard a discouraging word."

Footslogger
11-02-2005, 14:16
Just got the e-mail myself this morning. Saw Ryan Jordan this past year at the CDT Trail Fest and he "hinted" about it. Been an AquaMira user now for 4 - 5 years but this sounds like a better product. No mixing of Part A/B and the same wait time.

Gonna order me up a bottle on the 9th when it goes on sale.

'Slogger

...and the skys are not cloudy all day here in Wyoming either !!

MacGyver2005
11-02-2005, 15:08
Why not use regular bleach? 2 drops per quart, shake, and go. No waiting, cheap, reliable, readily accessible.

Regards,
-MacGyver
GA-->ME

Two Speed
11-02-2005, 15:14
Why not use regular bleach? 2 drops per quart, shake, and go. No waiting, cheap, reliable, readily accessible.

Regards,
-MacGyver
GA-->MEDon't think the "no waiting" option is a real good idea. To the best of my knowledge all chemical treatments require time to work; more time required for cold water.

gravityman
11-02-2005, 15:28
Why not use regular bleach? 2 drops per quart, shake, and go. No waiting, cheap, reliable, readily accessible.

Regards,
-MacGyver
GA-->ME

That and it doesn't kill giardia, which is what most people are trying to kill...

ops...

Gravity

SGT Rock
11-02-2005, 15:41
Why not use regular bleach? 2 drops per quart, shake, and go. No waiting, cheap, reliable, readily accessible.

Regards,
-MacGyver
GA-->ME
Well actually, according to the training manuals and even FEMA (no not the horse rancher manager) you will need more:


Add 16 drops of bleach per gallon of water, stir, and let stand for 30 minutes. The water should have a slight bleach odor. If it doesn’t, then repeat the dosage and let stand another 15 minutes. If it still does not smell of chlorine, discard it and find another source of water.

So for a quart you would need to add 4 drops, wait 30 minutes and sniff, then you may need to add more. If you never make you water smelly enough after that, you aren't supposed to drink it. So if you water doesn't stink, don't drink it LOL:cool:

Seeker
11-02-2005, 15:54
post deleted. i read someone's comments backwards. sorry

MacGyver2005
11-02-2005, 20:20
That and it doesn't kill giardia, which is what most people are trying to kill...

ops...

Gravity I'm pretty sure it does kill giardia. :rolleyes: Rock, thanks for the update. Josh, the hostel owner in Dahlonega, was in the Army. He was the one that told me about bleach being commonly used in water buffalos. He said 1½ drops per quart would do it, so that is what I went with, and also that there was no need to wait. Regards, -MacGyer GA-->ME

stag3
11-02-2005, 22:58
Micropure water purification tablets work great. I've used them with some really bad looking water. To keep it simple, I just use a coffee filter to take out the big stuff, and then add 1 tablet per liter. According to REI, these tablets release chlorine dioxide, the same chemical used in municipal systems, and kills all bacteria and viruses. Bacteria is like 5 minutes and virus is 4 hours.

Best part is no aftertaste. Plus, no mixing a and b.

Stag3

hikerjohnd
11-02-2005, 23:17
I'm not a BPLight subscriber - any other details on the new product availible for us thrifty folks?

Clark Fork
11-03-2005, 02:40
I'm not a BPLight subscriber - any other details on the new product availible for us thrifty folks?


BackpackingLight.com to Launch New Chlorine Dioxide Based Water Treatment Product to US Market

A pre-mixed, stable, ready-to-use chlorine dioxide alternative promises ease of use, outstanding efficacy, and proven legitimacy for nearly a decade in military and expedition environments.


Proven chemistry.
Chlorine dioxide is the active ingredient in Aqua Mira, Pristine, and thousands of public and private water treatment facilities in the US and Europe.
Pre-mixed formulation: no wait time to activate solution.
Unlike existing formulations, the new formulation comes pre-mixed and stabilized, with an opened-bottle shelf life suitable for most expedition length events. Refrigeration extends the open bottle shelf life to about eight months.
The pre-mixed product solves the ease-of-use dilemma that is the primary criticism of other chlorine dioxide kits. Simply uncap the bottle, pour a metered dose into the cap, and empty into your water bottle. Wait times for disinfection are similar to other products, ranging from 15 to 30 minutes.
Formulated for multiple uses.
This formulation is a multi-use product with excellent applications for field first aid treatment and hygiene. Cuts and scrapes can be disinfected directly with KlearWater to minimize the chance for infection. It can be used in its concentrated or lightly diluted form for handwashing/disinfection, mouth rinsing/brushing, and fungal control on the feet and in areas prone to chafing.
Exclusive launch distribution to BackpackingLight.com Premium Members.
The new formulation will be available only to BackpackingLight.com Premium Members (http://www.backpackinglight.com/cgi-bin/backpackinglight/subscribe.html) during its launch period. It is unknown at this time when BackpackingLight.com will make this product publicly available. "We expect the demand for this product to be outpace supply within our subscriber base," says BackpackingLight.com Publisher Ryan Jordan, "and it's very important to be able to put this product initially in the hands of our Premium Membership first, since they are very passionate about trying new products, and giving us their feedback in a short period of time. Then, we can take that feedback back to the manufacturer and adjust packaging, formulations, and usage guidelines before the product hits the mass market. We'll release our supply to the public after demand from Premium Members has been filled first."
Prepurchase Information.
BackpackingLight.com Premium Members may pre-purchase the new formulation beginning November 9, 2005. The first product is expected to ship around November 20, and will be available in 30 mL metering bottles and 50 mL refill bottles. Both kits will be packaged with assorted dropper bottles to facilitate ease of dispensing and reduce volume and kit weight required to take on short hikes. A pre-purchase announcement will be sent to all active BackpackingLight.com Premium Members (http://www.backpackinglight.com/cgi-bin/backpackinglight/subscribe.html) on November 9, 2005.

AVAILABILITY INFO: BackpackingLight.com Premium Members may pre-purchase the new formulation beginning November 9, 2005. The first product is expected to ship around November 20, and will be available in 30 mL metering bottles and 50 mL refill bottles. Both kits will be packaged with assorted dropper bottles to facilitate ease of dispensing and reduce volume and kit weight required to take on short hikes. A pre-purchase announcement will be sent to all active BackpackingLight.com Premium Members on November 9, 2005.

That's all Folks.....

Clark Fork in Western Montana

stag3
11-03-2005, 07:04
Clark,

Sounds like a bunch of marketing hype. This new stuff is a liquid (bad news) and has a short shelf life (more bad news). Just go to your outfitter and buy some Micropure tablets.

Stag3

Kerosene
11-03-2005, 09:49
I wouldn't jump to the conclusion that this is marketing hype, as its predecessor formulation has very wide adoption. Of course, it depends on just how much it costs.

I did a Google on Micropure Tablets and found this disclaimer:

Micropure tablets contain a compound called Katadyne silver which is not effective against Amoeba, Giardia or viruses. It does not impart a bad taste and it is claimed to be able to prevent recontamination of water for many weeks.

I suggest that you/we do some more research on this formulation before we write it off to hype (not that it wouldn't be the first time).

hikerjohnd
11-03-2005, 09:52
Thanks Clark Fork! :clap

Two Speed
11-03-2005, 10:36
I'm pretty sure it does kill giardia. :rolleyes: Rock, thanks for the update. Josh, the hostel owner in Dahlonega, was in the Army. He was the one that told me about bleach being commonly used in water buffalos. He said 1½ drops per quart would do it, so that is what I went with, and also that there was no need to wait. Regards, -MacGyer GA-->MEFirst, several members of the Fulton County Public Works Department would like to thank you for the laugh. Either Josh is misinformed, was pulling your leg or was misunderstood somehow.

Next, I'd like to suggest that you read this thread. Don't know that everything is exactly correct, but it tracks pretty well with what staff here is telling me.
http://www.whiteblaze.net/forum/showthread.php?t=1963
I believe there's a post on WhiteBlaze containing a detailed study of water quality in the Sierras that's well worth reading, but I haven't been able to find it.:datz

Third, CHEMICAL TREATMENT REQUIRES CONTACT TIME. CONTACT TIME IS DEPENDENT ON THE CHEMICAL, CONCENTRATION OF THE CHEMICAL, TURBIDITIY OF THE WATER, WATER TEMPERATURE AND THE ORGANISM YOU'RE TRYING TO KILL. There are probably other parameters I've forgotten, but those are the outstanding ones.

Last, I've never met you and you are probably a decent guy, but please don't believe everything you hear on the trail without doing a little research.

HikeLite
11-03-2005, 11:39
That is old information about a different product. The one we are talking about here is Katadyn Micropur MP1 tablets. They are EPA APPROVED.


I wouldn't jump to the conclusion that this is marketing hype, as its predecessor formulation has very wide adoption. Of course, it depends on just how much it costs.

I did a Google on Micropure Tablets and found this disclaimer:

Micropure tablets contain a compound called Katadyne silver which is not effective against Amoeba, Giardia or viruses. It does not impart a bad taste and it is claimed to be able to prevent recontamination of water for many weeks.

I suggest that you/we do some more research on this formulation before we write it off to hype (not that it wouldn't be the first time).

Kerosene
11-03-2005, 11:47
Thanks, HikeLite.

snarbles
11-03-2005, 13:12
So what is the unmixed shelf life of Aqua Mira. Should I be refrigerating it to preserve it longer?

stag3
11-03-2005, 13:31
HikerLite,

From the REI website, Micropure is EPA approved and destroys viruses and bacteria in 15 minutes, Giardia in 30-minutes and Cryptosporidia in 4-hours. These times may be extended for cold or dirty water.

The shelf life is measured in years.

Footslogger
11-03-2005, 14:10
So what is the unmixed shelf life of Aqua Mira. Should I be refrigerating it to preserve it longer?
==============================
Each set of Part A/B AquaMira bottles have an expiration date printed on them but off hand I don't know the exact shelf life. Seems to me that the sets I bought for my 2003 thru had expiration dates sometime in 2006.

'Slogger

MacGyver2005
11-04-2005, 13:55
Last, I've never met you and you are probably a decent guy, but please don't believe everything you hear on the trail without doing a little research.

The guy was in the medical field of the Army for eight years and was personally involved with such activities. I count that as decent research. I'm glad you managed to get a laugh of it, but I would much rather get valid feedback with valid information if you are going to correct me. That is much more productive, and much more helpful for everyone here, including myself.

Regards,
-MacGyver
GA-->ME

Two Speed
11-04-2005, 14:23
You did get a valid reply, you're just refusing to understand that contact time is required for chemical treatment; they don't just work by magic, time is required.

Nightwalker
11-04-2005, 16:33
That and it doesn't kill giardia, which is what most people are trying to kill...

ops...

Gravity
CDC may differ.

http://www.backcountry.net/arch/pct/9908/msg00134.html

I use bleach. Ultra strength, 3 drops per liter/quart. Sometimes.

Nightwalker
11-04-2005, 16:40
I wouldn't jump to the conclusion that this is marketing hype, as its predecessor formulation has very wide adoption. Of course, it depends on just how much it costs.

I did a Google on Micropure Tablets and found this disclaimer:

Micropure tablets contain a compound called Katadyne silver which is not effective against Amoeba, Giardia or viruses. It does not impart a bad taste and it is claimed to be able to prevent recontamination of water for many weeks.

I suggest that you/we do some more research on this formulation before we write it off to hype (not that it wouldn't be the first time).
That's funny, I came up with Micropur (diff spelling) being Chlorine Dioxide.

Two Speed
11-04-2005, 17:02
Yes, bleach probably is a good expedient method, which is what FEMA should be emphasizing. FEMA's methodology is oriented to emergency situations by the nature of the agency's mission. Hiking is generally not an emergency; some of the methods suggested by FEMA aren't recommended for the long term.

I don't doubt that the U.S. military has adopted, modified, inspired or sponsored FEMA's research on the subject. Bleach is certainly better than nothing, and under emergency conditions I would consider using it. However, if you want it to work it must be in contact with the target organism for a sufficient amount of time for the bleach (or any other chemical agent) to kill or inactivate the target organism(s).

The whole field of decontamination of potable water is complicated, to put it mildly. There is individual resistance, contact time, the nature of the target organism, concentration of target organisms, water temperature, water pH, turbidity, water temperature, the sepcific chemical used to decontaminate and the concentration of the chemical to name the parameters that pop to mind. I'm sure there are others.

All that said, chemical agents require time to work. It is not reasonable to assume that one can just add a chemical and expect it to work immediately; there will be a required contact time. Any concenteration of a chemical that would instantly kill all the target organisms would probably not be something one would want to consume as it would probably be just as hard on the human as the target bacteria or virus. Maybe not fatal, but definitely not healthy.

Of course, all of the above rests on the assumption that decontamination is required. There is a good deal of research that indicates that the threat of biologically contaminated water is not nearly as severe as the filter and chemical vendors would have hikers believe.

Mouse
11-04-2005, 17:14
Wow, so many details. It makes it seem like the best choice is to pack all your water from home! :datz

betic4lyf
11-04-2005, 17:57
this all in one thing seems hard to believe. don't you think that the people at aqua mira would have done it a while ago. it seems to me that what happens is that when the two mix, they form chlorine dioxide, which disinfects the water. i am guessing the reaon they usually arent mixed, is that the chlorine isnt stable.

brian
11-04-2005, 18:02
I think the 6 month or so shelf life is the main reason McNetts hasn't gone to this particular "configuration". Most people would not use all of their Aqua Mira in such a short period of time!

Brian

Seeker
11-04-2005, 18:19
Wow, so many details. It makes it seem like the best choice is to pack all your water from home! :datz
that would be heavy... what we need as hikers is dehydrated water. (and watch... some fool would buy it...)

Two Speed
11-05-2005, 03:30
Amazing what you find if you just open your eyes . . .
http://www.whiteblaze.net/forum/article.php?p=119497&postcount=1
I thought it was an excellent article; tracks with everything I know about treating potable water, etc. Should be required reading IMHO.

MacGyver2005
11-06-2005, 18:40
You did get a valid reply, you're just refusing to understand that contact time is required for chemical treatment; they don't just work by magic, time is required. Ah, ok. I certainly accept the fact that contact time is required and am in no way refusing that. It appeared to me (which is obviously not the case) that you had other qualms with my suggestion of bleach. Your point is well taken; do you happen to have a reasonable time limit for bleach to work? I understand that there are variables like temperature, but a standard answer (like Aqua Mira has) would be most helpful. Regards, -MacGyver GA-->ME

Clark Fork
11-10-2005, 20:44
More Information from the web site.

30 ML will sell for $12.99. I have Aqua Mira to use up.


A BackpackingLight.com Exclusive

BackpackingLight.com is proud to be the exclusive U.S. launch partner for the KlearWater by Xinix Chlorine Dioxide Water Treatment Kit.
The primary benefits of KlearWater by Xinix Chlorine Dioxide solution are:

The proven efficacy of chlorine dioxide against a variety of pathogens.
Virtually odor- and taste-free water treatment solution.
Specially formulated solution allows KlearWater by Xinix Chlorine Dioxide to be used directly for wound cleansing, oral hygiene, hand washing, and more.
Pre-mixed, stabilized chlorine dioxide solution requires no wait time for a multi-part mixture to activate prior to adding solution to your water.http://www.backpackinglight.com/backpackinglight/images/kwlabel-400.jpg</IMG> Product Specifications

Active ingredient: Chlorine Dioxide 0.15%
Bottle type: Opaque brown glass, 30 ml or 50 ml
Dosing mechanism: Built into cap
Dosage & contact time: 1 mL for 15-30 minutes. Halve dosage and double the treatment time, or double dosage and halve the treatment time. Increase treatment time for cold water temperatures, cloudy water, and treatment of some organisms (e.g., protozoan cysts).Ryan Jordan's Comments

I've had the chance to use a variety of Xinix and KlearWater formulations during the past several months. My experiences have given me a lot of confidence about these products. However, they are new enough to the market that I expect consumers to make informed decisions about how to care for them, use them, and understand their efficacy. I'm sure we'll all be learning a lot about KlearWater simply based on sharing our experiences with it over the next several months.
Shelf Life Comments: KlearWater comes packaged in brown glass bottles that are heavier than the plastic bottles we are normally accustomed to. However, the 30 ml kit still weighs only 2.9 oz, and treats 30+ L of water. Keeping KlearWater in a brown glass bottle is the best way to preserve its shelf life. When not using it on a trek, it's best to keep it refrigerated in its brown glass bottle. Refrigerated, KlearWater will keep up to probably 2 years or so unopened, and 8 months or so opened. Unrefrigerated, but still stored in a cool, dark, environment (like a basement), the shelf life seems to be about half that time. I've talked extensively to the manufacturer about the relationship between the shade of yellow and the product's efficacy. They have tested this, and assure that as long as the solution has any shade of visible yellow in it, there is more than enough active ingredient for it to be efficacious.
Redistributing KlearWater into other containers. Of course, the manufacturer does not condone this, but ultralight backpackers will certainly want to try it, and I've experimented with this as well. I've decanted Klearwater solution into the Backpacking Light MiniDrop Bottles (http://www.backpackinglight.com/cgi-bin/backpackinglight/dropper_bottle_assorted), which just a tad under 10 ml of KlearWater solution. I've found the shelf life of this chemical in these bottles to range from about 2 to 6 weeks, depending on the environmental temperatures. When I decant into these bottles, I'm usually halving the dosage and increasing contact time to extend the range of the bottle capacity. Discover for yourself the # of drops from your bottle of choice required to fill a 1ml dosage volume. Use the cap provided with a KlearWater bottle to do this.
Dosing Strategies. The following is not unique to KlearWater, and I use this strategy for Aqua Mira (http://www.backpackinglight.com/cgi-bin/backpackinglight/aquamira_mcnett.html) as well. Generally, as you halve the dose, you must double the treatment time for the same efficacy. This is a good way to minimize the amount of chemical you take on a trek. Likewise, if you want your water treated faster, or you are treating a more suspect water source, consider doubling your dosage and/or your treatment time. Generally, I use 1/2 ml of KlearWater per liter (e.g., of clear stream water) and wait 30-60 minutes before drinking it. Before going to bed, I use as little as 1/4 ml of KlearWater per liter, and let the water sit overnight. This strategy allows me to treat about 25-30 liters of water from a full MiniDrop bottle (6+ days of hard hiking on a bottle that weighs 0.5 oz full) and more than 80 liters of water from a full 30mL KlearWater glass bottle (20+ days, 2.9 oz full). That's a very aggressive approach to extending the range of KlearWater. Generally, if the guidelines are followed, a full 30ml glass bottle of KlearWater (2.9 oz) will last most hikers a week or more on the trail.
Final Notes. KlearWater is heavier than Aqua Mira, if you consider the weight of the glass bottle. For some, the small weight increase will far outweigh the significant increase in convenience in using this product. I can actually treat water while hiking, something that is very difficult to do with a two part system requiring mixing and waiting for the solution to activate. Does this mean that KlearWater is necessarily "better" than Aqua Mira? Of course not. There are tradeoffs, for sure: price, bottle weight, shelf life. Consider yourself, after reading this entire product description, a consumer informed enough to make the best decision for your own style: both KlearWater and AquaMira are outstanding products in their own way!
Robyn Benincasa's Experiences. Robyn is a very experienced expedition adventure racer and the team captain for Merrell/Wigwam. In addition to her impressive AR resume that includes first place finishes in the Eco-Challenge and Raid Gouloises, she's been using KlearWater/Xinix since 1998. I've been asking her lots of questions about her experiences and she's been most helpful. Her letter to me is found at the end of this product description. (http://www.backpackinglight.com/cgi-bin/backpackinglight/klearwater_xinix_chlorine_dioxide_clo2_water_treat ment.html#robyn) Product Features

Pre-mixed formulation: no wait time to activate solution.
Unlike existing formulations, the new formulation comes pre-mixed and stabilized, with an opened-bottle shelf life suitable for most expedition length events. Refrigeration extends the open bottle shelf life to about eight months.
The pre-mixed product solves the ease-of-use dilemma that is the primary criticism of other chlorine dioxide kits. Simply uncap the bottle, pour a metered dose into the cap, and empty into your water bottle. Wait times for disinfection are similar to other products, ranging from 15 to 30 minutes.
Formulated for multiple uses.
This formulation is a multi-use product with excellent applications for field first aid treatment and hygiene. Cuts and scrapes can be disinfected directly with KlearWater to minimize the chance for infection. It can be used in its concentrated or lightly diluted form for handwashing/disinfection, mouth rinsing/brushing, and fungal control on the feet and in areas prone to chafing.
Proven chemistry.
Chlorine dioxide is the active ingredient in Aqua Mira, Pristine, and thousands of public and private water treatment facilities in the US and Europe. More Features:

Versatile: Effective through a broad range of temperatures and pH.
Durable: Lasts for months after opening.
Self-indicating: KlearWater is yellow when active, becomes clear when inactive.
Multi-Use: KlearWater may be used as a hand and surface cleaner, oral rinse, and emergency wound irrigant.
Safe: No harmful chlorite residue.
Convenient: Simple to use, easy to carry.
Lightweight: Compact size < 3 oz package weight (30 ml)
Cost Effective: 30ml bottle treats 30 liters minimum - treat more by increasing contact time and decreasing dose
Proven: Over 10 years of proven performance worldwide.More Information & History About KlearWater

The following information was provided to us by the manufacturer.
About KlearWater
DTI-Sweden, in collaboration with BackpackingLight.com, is proud to introduce KlearWater water treatment, a safe, fast acting, and powerful water treatment containing active Chlorine Dioxide.
The KlearWater formula was developed in Sweden over a decade ago by Dr. Iwan Zatterquist, who is recognized throughout Europe as an authority in the fields of pathogen remediation and water treatment technology.
The KlearWater formula is the only pre-measured, pre-mixed, active, Chlorine Dioxide available in the world today.
The KlearWater formula has been proven by years of use in Europe, and is equivalent to DTI’s XiniX Extreme, which is currently used by the US Special Operations Command. XiniX Extreme has also been accepted a part of the Medic training program of the Joint Special Ops Medical Training Center.
KlearWater’s effectiveness and light weight has also made it the water treatment preferred by the top-ranked professional Adventure Sports Racing Teams in the US and abroad. Team Merrell/Wigwam, after extensive testing in ASR events around the world, has endorsed KlearWater exclusively.
KlearWater water treatment is now available to hikers, campers, travelers, and all outdoor sports enthusiasts.
What makes KlearWater unique?
KlearWater contains only active Chlorine Dioxide and de-ionized water. KlearWater is used directly from the container, and begins to work immediately. KlearWater requires no pre-mixing or waiting for two-part chemical reactions. KlearWater is ready-to-use, and no other Chlorine Dioxide based product available to consumers can make that claim.
KlearWater is powerful. The active Chlorine Dioxide formula found in KlearWater quickly eliminates a broad variety of bacteria, viruses and parasites. Because the Chlorine Dioxide in KlearWater is active, its powerful oxidizing effect goes to work immediately.
KlearWater is durable. When stored properly (in a cool, dark environment), KlearWater lasts for many months after opening. In optimum conditions KlearWater can last for a year or more.
KlearWater's shelf life is self indicating. KlearWater is yellow when active. When it is no longer effective it becomes clear. You always know when it is safe to use.


KlearWater is simple to use. KlearWater has a simple measuring top that is marked for one(1) milliliter(ml). This is the normal amount used to treat one liter of water.* An orifice insert in the bottle makes dispensing easy and prevents spills. Just fill the top to the 1ml mark, and then pour into 1 liter of water.
* Suspect, cloudy, or very cold water may require 2ml per liter and/or an increase in treatment time.KlearWater is multi-purpose. KlearWater may be used full strength or diluted for use as an oral rinse, hand cleaner, or as a wash for fruits and vegetables. KlearWater is effective as a cleaner for utensils and other surfaces. KlearWater also acts as an excellent emergency wound irrigant.
KlearWater is safe. The concentration of chlorine dioxide is safe and effective for use as a water treatment. KlearWater does not produce a high residual concentration of chlorite. Klearwater is more effective through a broad range of pH and temperature than other chlorine- (i.e., bleach, mixed oxidants) or iodine-based water treatment chemistries. About Chlorine Dioxide

The active ingredient in KlearWater, Chlorine Dioxide (ClO2), has long been recognized as an effective and safe method of treating water. ClO2 is used by many municipal water treatment facilities to eliminate viruses and bacteria that can cause physical discomfort, disease and infections. Many of these viruses and bacteria, such as E-Coli, Cryptosporidium, and Giardia, can be found in streams and lakes in the US. Even public water supplies in underdeveloped countries often contain harmful microbes. The oxygenating effect of Chlorine Dioxide eliminates harmful pathogens, particularly those trapped in biofilm, and helps improve both taste and odor of the water.
Whether you’re hiking, camping, or traveling abroad, KlearWater can act as your personal, portable, water treatment system. Who can use KlearWater?

Hikers/Campers: Treat water, oral rinse, hand and surface cleaner, emergency wound irrigant.
Travelers: Treat water from suspicious sources, wash fixtures in hotel rooms, wash hands before eating.
Hunters: Treat stream water before drinking, hand cleaner.
Boaters: Treat water from fresh water tank, hand cleaner.
Homeowners: Treat water, surface cleaner, emergency preparedness.
Adventure Racers, Extreme Sports: Treat Water, oral rinse, hand and surface cleaner, emergency wound irrigant.
Military: Water treatment, multi-use for field expediency.Letter From Robyn Benincasa About Her Experience with KlearWater/Xinix

November 2, 2005
Hi Ryan,
I'm thrilled to see that BackpackingLight.com is launching KlearWater (Xinix) in the US! I've had a lot of experience using KlearWater as a professional Adventure Racer and Firefighter.
My adventure racing teams and I have been using the product (as its Swedish brand, Xinix) since 1998, and can't recommend it enough - not only for water purification, but also for field disinfection of cuts and scrapes, and as a mouth rinse for oral hygiene (sadly we don't do a lot of teeth brushing while racing hard for 7-10 days in expedition-length races like the Eco-Challenge!--don't tell Mom!).
The main benefits of a product like KlearWater for racers, fastpackers, etc., is that it's really easy to use while on the "run" (literally - we use it without ever taking our packs off, simply dip a bottle into a creek as you cross it and treat it as you keep walking). There is no mixing involved, and there is no foul taste when it's added to water or drink mixes (unlike iodine or other technologies that impart a bleach-like flavor to the water).
We also have plenty of confidence in its spectrum "cootie coverage": most of the world-class expedition-length racers use this product, and we use it everywhere: in some of the nastiest waters on earth. The fact that we've all remained relatively bug-free over the past eight years of using it is a great testament to the KlearWater/Xinix product!
Klearwater/Xinix would probably be the first thing on my Top 10 Things to Have on a Deserted Island list! Adventure Always,
Robyn Benincasa
Captain, <A href="http://www.teammerrellwigwam.com/" target=_blank>Team Merrell/Wigwam Adventure
Director of Fun, World Class Teams (http://www.worldclassteams.com/)

gravityman
11-11-2005, 12:01
CDC may differ.

http://www.backcountry.net/arch/pct/9908/msg00134.html

I use bleach. Ultra strength, 3 drops per liter/quart. Sometimes.

Hmmm... You have to read that more carefully, and that wasn't posted by the CDC. Bleach is used as the 3rd, and least attractive method for water purification because it isn't effective in kill Giardia at drinkable levels. It will kill giardia - at pool level concentrations. It is effective at killing bacteria, but not giardia. I have searched all over the CDC site and found nothing concrete. My best source is here (http://www.bchealthguide.org/healthfiles/hfile49b.stm) by the canadian health ministry, which says, in part :

Unscented household bleach (5% chlorine) can sometimes be a good disinfectant - e.g. when the water is not heavily polluted, or when beaver fever or cryptosporidiosis are not a concern.

Disinfection using bleach works best with warm water. Add 1 drop (0.05 mL) of bleach to 1 Litre of water, shake and allow to stand for at least 30 minutes before drinking.

Double the amount of bleach for cloudy water, or for cooler water.

A slight chlorine odour should still be noticeable at the end of the 30 minute waiting period if you have added enough bleach.
The disinfection action of bleach depends as much on the waiting time after mixing as to the amount used. The longer the water is left to stand after adding bleach, the more effective the disinfection process will be.

NOTE: Bleach does not work well in killing off beaver fever (Giardia) or Cryptosporidium parasites. The amount of bleach needed to kill these parasites makes the water almost impossible to drink. If beaver fever or Cryptosporidium are in your water, boiling is the best way to ensure safe drinking water.

Two Speed
11-16-2005, 09:45
MacGyver: that looked like a fair question, and took a little research on my part to find that there really isn't a good concensus on this issue, which probably makes it a darn good question. If you look at the articles on FEMA's web page at http://www.fema.gov/library/dizandemer.shtm you'll find that FEMA isn't consistent on the dosing. Given that dosing, water quality, contact time, etc, are related that indicates to me that there's more than a little controversy on the efficiency of bleach as a disinfectant. FEMA, and the CDC from the previous post, does seem to be consistent about recommending a 30 minute contact time, but FEMA does stipulate a minimun 5.25% concentration, which also seems to track with the CDC's recommendations. Personally I've read the articles on FEMA's webpage and read the excellent article here on WhiteBlaze at: http://www.whiteblaze.net/forum/article.php?p=119497&postcount=1.

I plan on digesting that information then doing a little thinking, and then making my own decisions. I don't think making blanket recommendations without complete knowledge of the individual's health and the quality of the water in question is a real hot idea; what anyone decides to do will be their decision and the consequences will be their's to deal with.

One caveat: everything I've read indicates that bleach is an expedient method intended to allow disaster victims to do something to reduce their likelihood of contracting a water borne illness and is by no means a sure cure for every nasty out there. It ain't a recommended procedure if you've got access to something better.

MacGyver2005
11-16-2005, 14:31
Two Speed, thanks for the insight. Common sense is something that is lacked by so many that there is always a need for "blanket" recommendations. It does not take a scientist to determine that water is too cold, contaminated, or plentiful for X amount of bleach to be effective in Y time period. As such I will refrain from going by any set "safe" timing and use my own good judgment if bleach is ever my method of water treatment.

The fact that it is more of a "deterant" of illness and is condoned as such in emergencies leads me to prefer other methods, like Aqua Mira. This has been quite enlightening overall, though, and has certainly changed my mind about bleach. Thanks for all of the input!

Regards,
-MacGyver
GA-->ME