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The Only EPA Registered Purification Tablets on the Market - effective against Cryptosporidium, Giardia, bacteria, and viruses.
FEATURES:
- The only disinfection system effective against viruses, bacteria, cryptosporidium, and Giardia
- Fresh tasting water - no unpleasant taste
- Easy to use tablets
- The same proven technology that is used in municipal water supplies
- Lightweight and compact - ideal for traveling, lightweight backpacking, and emergency use
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Technical Details
- Made By: KatadynSee more technical details
By Max
It's impossible to tell if things like this work because if you don't get sick, you don't know if the water was infected or not. Nonetheless, on my last backpacking trip I planned on getting water from a stream that I saw on a map.
The stream ended up being extremely low, almost dry actually. The water was brown, almost completely still and very sketchy looking... I was pretty reluctant to drink it but I didn't have any other source of water for the trip.
I filled a 40oz container and added the pill. Waited 4 hours and drank the whole thing. Then got more water for the rest of the trip. I didn't get sick so it must have worked!
By Bread Maker (San Francisco)
My friend and I went on a five day backpacking trip in CA, and hands down, these tablets produced the most normal tasting water. We had access to plenty of lakes, streams, and sometimes a pond looking pool of water. We didn't take a chance, so we treated all sources with this and a different brand. Although other brands took only a few minutes, this one takes at least four hours to treat. Other brands actually change the color into an orange color, but this Katadyn makes the water clear and we couldn't tell the difference.
Again the four hour treatment time takes a bit of planning, but definitely worth it.
By Arthur Bradley (Eastern USA)
The EPA estimates that 90% of the world's fresh water is contaminated and unsuitable for drinking. The days of kneeling down on a hike and sipping from the stream are long gone. Don't make the mistake of thinking that just because water looks clear or tastes good that it is free of contaminants. That includes frozen water, which can house hepatitis A, Salmonella, and Cryptosporidium for months.
There are many options for purifying the water, but this post will compare commercial products that rely on halogen chemical treatments.
Polar Pure - contains iodine crystals, has an almost indefinite shelf life if kept tightly sealed, and very inexpensive per dose cost, requires measuring the dosage using the cap (which can be imprecise).
Potable Aqua - contains iodine tablets, shelf life of up to four years if properly stored - if they've turned a light green don't use, moderately expensive per dose cost, easy to administer doses (two tablets per quart of water).
Micropur MP1 - contains chlorine dioxide tablets, has a shelf life of at least four years, moderately expensive per dose cost, and comes in easy to administer doses (one tablet per quart of water).
Simple household bleach - 2 drops per quart of water (assuming a a bleach solution of 5-6% hypochlorite), may wish to double the dose for cloudy water, shelf life of bleach is only about 6 months, must use a dropper to administer dose, very inexpensive per dose cost.
Tincture of iodine - 5 drops per quart (assuming a 2% iodine solution), may wish to double the dose for cloudy water, almost indefinite shelf life if properly stored, must use a dropper to administer dose, modest per dose cost.
All of the methods are effective at killing bacteria, somewhat effective against viruses, and of limited value against protozoa cysts. Cryptosporidium in particular is resistant to halogen treatments.
Most treatments only require 30 minutes. However, very cold water (i.e., less than 40 degrees F) should be allowed to sit for 2 or more hours, or be treated with a double dose.
As far as taste, all will introduce some chemical taste into the water. In a very unscientific taste test of chemical treatment methods, my own family concluded that iodine-treated water was by far the worst smelling and tasting, bleach-treated was second, and water treated with Micropur MP1 ready-to-use tablets was the least objectionable.
Finally, you can add Kool-aid to treated water to help the taste. Not only will it help to mask the chemical taste, but the ascorbic acid (vitamin C) converts the chlorine or iodine to tasteless chloride and iodide.
Please be kind enough to indicate if reviews are helpful.
Written by Arthur Bradley, author of "Handbook to Practical Disaster Preparedness for the Family."
By teotwawki12 (Michigan)
I have not used these to purify water (yet), but I must say that they are packaged perfectly to add to a small survival kit or a survival tin. They are individually packaged and flat, and that was just what I needed for my Altoids tin mini survival kit. (They have a good reputation and I have no doubt as to their quality.)
By Old GAME
I used these pills on 430 miles of hiking along the southern AT last year. I didn't get sick drinking from the springs along the trail. The recommended 4 hour treatment is a disadvantage, and you need to plan for it. I carried two full quart bottles and always filled and treated a bottle whenever it got empty. I also treated water overnight and used untreated water when boiling water for meals.
Some hikers believe that filters are actually lighter because they don't need to carry as much water and that makes up for the weight of the pump. Personally, I didn't mind carrying extra H2O, especially when springs turn out to be dry.
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