In general, it is recommended that all backcountry water sources be treated prior to consumption since even the most pristine looking stream can carry contamination from human and animal waste from time to time. A water source may be completely clean one day and contaminated the next due to rain or other runoff. Although North American drinking water sources are usually considered safe, a disaster situation can compromise water treatment facilities and cause infrastructure failures that can leave normally trustworthy water susceptible to contamination.

Water Filters

Removes bacteria, parasites, and protozoa, as well as sediment and grit. Water filters do not remove viruses; therefore they are suitable only for water that is known to be free from water-borne viruses such as Polio, Hepatitis A, and Norwalk Virus. Water filters use one or more layers of microfiltration medium to process questionable water. As water is pushed through the filtration medium the tiny pores allow the water to pass through but capture anything larger such as bacteria or sediment.

Water Purifiers

Removes bacteria, parasites, protozoa, and viruses from the water. Water purifiers are effective in removing 99.9% of all water-borne disease and infection, making them the best way to ensure the absolute cleanliness of a water source. Although most North American water sources are free from viruses that can be found in the water of developing countries, a disaster situation could change that in a heartbeat. Most water purifiers utilize a multi-stage filtration in addition to iodinated resin to eliminate bacteria, viruses, and protozoa. Many also use a carbon filter to improve taste.

Water Purification Tablets

Removes bacteria, viruses, and protozoa. Emergency drinking water tablets are not intended for long-term use as they employ chemical treatment to kill the pathogens in the water. The most common chemical treatment is iodine-based although chlorine can also be used. Emergency Drinking Water Purification Tablets are added to a measured amount of water and allowed to dissolve prior to consumption. While effective, these tablets often leave a bit of an unpleasant taste to the water and are not recommended for people with certain medical conditions or for pregnant women.

Katadyn water filters and purifiers are among the best in the world. These high-quality, portable water filters are a favorite among backpackers and outdoor enthusiasts as well as world travellers and are ideal for an emergency preparedness plan.