Stocking water reserves and learning how to purify contaminated water should be among your top priorities in preparing for an emergency. You should store at least a two-week supply of water for each member of your family. Everyone's needs will differ, depending upon age, physical condition, activity, diet and climate. A normally active person needs to drink at least two quarts of water each day. Hot environments can double that amount. Children, nursing mothers and ill people will need more. You will need additional water for food preparation and hygiene. Store a total of at least one gallon per person, per day.

The Lifesaver Jerry Can removes bacteria, viruses, cysts, parasites, fungi and all other microbiological waterborne pathogens. It does all this without the aid of any foul tasting chemicals like iodine which is a banned substance within the EU. The jerrycan holds 18.5 litres (approx 5 gallons) and can process up to 20,000 litres of water. There are 2 consumer versions, a military and an AID version.