Our Potable Aqua Water Purification Tablets make questionable water bacteriologically suitable to drink. Easy to use-water is ready in 30 minutes. One 50 tablet bottle treats 25 quarts of water. Ideal for hiking, backpacking and travel. Perfect addition to your first aid or travel kit.
Potable Aqua Water Purification Iodine Tablets (50 Tablets)
Iodine tablets designed to make contaminated water suitable for drinking
Tablets prove effective against Giardia lamblia when used as directed
Intended for short-term or limited emergency use only
Water is ready within 30 minutes; neutralizes iodine aftertaste and color
Ideal for campers, travelers, hikers, militaries, and emergency organizations
Average Customer Rating:
based on 526 reviews
Average Customer Review:
( 526 customer reviews )
Most Helpful Customer Reviews
426 of 435 found the following review helpful:
Does Its JobMar 12, 2012
By J. Nieporte These do what they're supposed to do. Before I give a review, I'll quote the box on a few points. 1. For use only when drinking water is suspected or known to be bacteriologically substandard. Not to be used on a continuous basis. (Their website suggests a six-week limit.) 2. Unopened bottles should remain effective for four years. (Look at the bottom of this review for how to date your tablets.) 3. We recommend that you do not keep an opened bottle for more than one year. 4. 2 tablets make one quart of bacteriologically water suitable to drink. 5. Proven effective against Giarda Lamblia when used as directed. 6. Has not been shown to inactivate Cryptosporidium cysts.
In a nutshell, use according to the directions and you'll be just fine. The bottle contains 50 tablets; you use two per quart of water. In really murky water, I use three. The active ingredient is Tetraglycine Hydroperiodide 16.7% and each tablet contains 6.68% of Titratable Iodine. This is the same stuff that I used in the military, but just to be sure, I opened a bottle and got three quarts of water from the Ohio River. Murky stuff. The first quart was treated with just the Potable Aqua (2-1/2 tablets). The second quart was boiled for ten minutes. The third quart was boiled for ten minutes, then given two tablets of Potable Aqua. All water was filtered through an untreated handkerchief first to remove debris and sediment. I'll note that my measurements were three quarts before boiling, so I'm sure some of the water was lost in the last two quarts due to the boiling process. The results?
While none of the water was as good as tap water, I'm still alive. The first batch (just Potable Aqua) was okay. I remember Potable Aqua having a bad taste; so bad that they included a separate bottle of pills to add that made the taste more bearable. That other bottle is unnecessary here. The water definitely had a chemical taste, but I could drink the minimum of a gallon a day if I needed to. The second batch (just boiling, no pills) tasted better, but smelled bad. I would be hesitant to drink any more than necessary. The third batch (boiled, then treated with Potable Aqua) was obviously the best. Considering that boiling only took ten minutes and a metal water bottle, this is the best option. Remember that all of the water was filtered through a handkerchief first to get rid of any sediment, debris, bugs, etc. I'll guess that if you filter the water, then boil, then use the tablets, you can use only one tablet. I'm not a doctor, dietician, or representative of the company, but I do have extensive training in SERE operations and I've been using these tablets for over fifteen years.
How can you find out when your pills were made? Each bottle has a series of numbers imprinted. For example: 403127. The first number is the month; in this case, the fourth month is April. The second and third numbers are the last two of the year; in this case, 2003. These pills were made in April of 2003. The last three numbers (127) indicate that this was the 127th batch made in that time frame. The code can be five or six numbers long; the first three numbers always denote the month and year; the last two or three always denote the batch number.
438 of 448 found the following review helpful:
All good backpackers have these, but as the label states they are for "emergency use"Jan 06, 2010
By Balph Eubank The 5 most common ways backpackers/campers purify water are 1. Boil it. Obviously slow and cumbersome. If doing strenuous backpacking/canoeing each person will need to boil a big pot of water every night. 2. Natural sunlight - letting water sit in the sun for 6 hours works (need cloudless day, correct kind of clear plastic container). The World Health Organization published a study on this, but Amazon won't let me link to it. 3. Water pump - I have used MSR HyperFlow Microfilter, though there are cheaper options if you can accept it being slightly larger. In my opinion this is the best method. 4. Household chlorine bleach - the EPA and WHO give instructions on doing this. The EPA says this may not kill Cryptosporidium. I've never tried. 5. Iodine tablets (or other chemical treatments)-
Positives: -Tablets are small/light for backpackers -Only takes 30 minutes to have water ready -No work required
Negatives: -EPA says it is not 100% affective against Giardia and Cryptosporidium, especially if the water is cold while being treated. -The taste is slightly bad ('metallic' is my best description).
I think a good attitude towards these tablets is "emergency use" (which is labeled on the side of the bottle, not visible in the Amazon image). No good backpacker doesn't have these, but I suggest a water pump as the planned primary method. Note: there are also iodine "neutralizer" tablets that are supposed to remove the bad taste (you drop them in after the 30 minutes is up and wait another 30 minutes). In my opinion they barely change the taste and are not worth it.
I'm only giving 4 stars since the EPA says it is not 100% effective against Giardia and Cryptosporidium. I'd give 5 stars if the product was named something like "EMERGENCY AQUA" instead of "POTABLE AQUA".
120 of 129 found the following review helpful:
Good for emergency use onlyOct 15, 2009
By Michael A. Duvernois These are great to have when camping and traveling, but it's important to have a basic plan for water beyond the iodine tablets. You're really only supposed to use them in emergencies. If you're backpacking and need to drink the local water, you should take a filtration system with you or boil the water. This is a good backup to boiling and filtration if you're short on time, or you have equipment problems. Drinking water purified with iodine also tastes foul which is a big issue in rehydrating foods.
Also note that once opened, the Portable Aqua has a limited shelf life.
192 of 222 found the following review helpful:
Far too PricyMar 12, 2010
By Richard Ward
Save your money. You can find these exact tablets in Wal-Mart cheaper and there's no shipping. Amazon should figure a way to combine shipping costs better to sell the small things like this. Unless you live a hundred miles off the beaten path, go to a major retailer and get these. On the plus side, these are excellent in an emergency kit as anticeptic for cuts. Just take a couple of tablets and dilute them in a little water and you can sterilize minor wounds.
41 of 46 found the following review helpful:
Great time saverAug 07, 2009
By Allan M. Lees When I hike in the wilderness I always carry an aluminium canteen & mug because then I can scoop up water and boil it to kill any micro-organisms that otherwise would create a party in my intestines. But when you're on the move you don't always have time to make a fire and boil water for 10 minutes, then wait for it to cool before drinking. These tablets can be dropped into any water container and voila, ten minutes later you have cool safe water to drink. A must-have anywhere in North America and they weigh practically nothing.
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