What methodology does Pure Water primarily implement?
Pure Water for the World’s field efforts have included several different water treatment methods – intermittent slow sand filtration and solar pasteurization. Those experiences, plus research work completed by the Thayer School of Engineering at Dartmouth College, have led PWW to promote primarily slow sand filtration in Honduras. We are currently using a filter designed by Dr. David Manz of the University of Calgary. This process has been in use in Europe and New England for the past 150 years. In the developing world, this filtering method is very simple, requires no maintenance, is very inexpensive and the units can be built locally of concrete. PWW has already installed hundreds of filters of this type in Honduras.
