MSR make gravity do the hard work for you with their latest water filter, out February 2008. The new Auto Flow Gravity Filter plus two bladders and attachment hoses will cost you £65 and save your arms from the pumping that conventional purification systems require by harnessing the obvious effects of gravity on flowing water.
Their "Why didn't anyone think of this before?" invention attaches to the hydration hose of your water bladder. Fill your bladder with water from a stream, attach it to the hose and filter combo, hang it from a tree, then kick back and relax as you watch clean water flow from the system.
It takes just over half a minute to filter a litre of water, removing 99.9% of bacteria and protazoa with no pumping whatsoever.
Tuesday, 24 July 2007
Posted by Trail at 11:31