Left: Custom designed prototype Watertiger™ RO unit to remove arsenic and bacteria in wells in Bangladesh. The unit requires no power as it uses a manual pump. It is an ideal solution for developing nations and disaster relief as the RO is manually powered and provides pure drinking and cooking water for village residents. Much of the water in Bangladesh is contaminated with arsenic.
Right: Testing the manually powered RO system. The pump uses a stepping motion to pump the water from the well and through the RO unit.
Bangladesh - January, 2001
