Water is a key element of any long range mission, and its availability often dictates mission duration if no drinkable water is available in the area. Beside its atmospheric water-generation units that are able to produce water from the humidity in the air, Watergen of Israel proposes water purification units. The vehicular solution, capable to produce 1.2 litres per minute with a power consumption of 100 W, has now been joined by a backpackable unit called the Spring. Powered by a standard military battery, the jerrycan-sized Spring can produce 180 litres at a rate of 55 litres per hour. It includes batteries and weight about ten kilos. Several filtration elements built on a multi-barrier principle treat any non-saline contaminated water, filtering out microorganisms, pesticides, heavy metals, etc. The Spring provides automatic validation of the water quality and shuts off automatically if standards are not met.
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