The ability to purify water, especially when traveling on foot and encountering suspect water sources will mean the difference between life an death. A person on the run or dodging anarchists or bandits could get by for days without food, perhaps even a week without degrading their abilities more than significantly. However, without water for 24 hours and the Survivor will be laid up waiting for death. Drinking polluted or contaminated water would only hasten that with excruciating gut pains and onset of whatever disease the water carried. Simply put, you have to have the capability to purify water you procure even if from man made sources.
Water filter/purification pumps are handy, but bulky for the Survival Bug Out Bag. Instead, the Urban Survivor should focus on packing his Bug Out Bag with water filters and purification tablets. Together this would be a small package and will not degrade the survivor's ability to remain mobile.
We really like the Aqua Mira product line. In fact our organization issues some of this company's products to our personnel with nothing but good feedback.
We recommend three items in this line for the Survival Bug Out Bag: A water filter straw, water filter bottle and water purification tablets as these will provide across the needs capabilities for the survivor.
Aqua Mira Frontier Pro Filter (Straw)
This is a pump free filter straw that allows direct filtration as the Survivor is consuming water from a suspect source. The Frontier Pro comes with a straw which gives reach to the source, a bite valve much like Camel-Bak's and an ability to use this system as a gravity filter from a common water bottle. Approximately 8 inches long and maybe 1.5 inches in diameter, this is an easily packed item for the Bug Out Bag.
The Aquamira Water Bottle and Filter system
This system includes a high quality 22oz. Nalgene® Sport Bottle with a sturdy push pull valve system and polycarbonate flip cap to keep the drinking valve clean. A single filter treats up to 230 refills and replacement filters are available.
The Aquamira Water Bottle fits most bicycle water bottle cages and backpack pockets. This lightweight easy-to-use system is ideal for wilderness or adventure travel, daily use at home or work, camping, bicycling, emergency kits and more. It is easy for you and your family to have a continuous supply of safe drinking water.
Aquamira Water Purifier Tablets
These drop in purification tablets provide all the benefits of liquid chlorine dioxide formula in an easy to use solid format. Each tablet purifies one liter (32oz.) of water and is conveniently sealed in an individual foil pouch. The individual tablet pouches are stored inside a re-sealable storage pouch that can be packed away almost anywhere. To use, simply drop one tablet into one liter of water and wait the required time.
Aquamira Water Purifier Tablets contain a patented chlorine dioxide formula that produces a powerful germicidal agent when released in water. When used as directed, Aquamira Water Purifier Tablets meet the EPA guidelines for Microbiological Water Purifiers making it the safest solution on the market. Sized for longer hiking, camping, or hunting trips, the 24 pack is all you need to purify water for up to 6 days. (Based on 4 Liters of water/day consumption) Aquamira Water Purifier Tablets will not discolor water and will actually improve the taste of treated water.
Aqua Mira also makes other items, both water purification and survival oriented, such as their excellent micro-fiber blanket. All good kit for your Bug Out Bag.