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==History and social context==
The EMAS is pedal pump was developed by Wolfgang Buchner, who runs the acronym for Escuela Móvil de Agua y Saneamiento (EMAS Mobile School for Water water and Sanitation)sanitation in Puerto Perez, Bolivia. The pedal pump was developed because of the wish to have a was to power the standard [[EMAS pump|EMAS hand pump]], of which tens of thousands exist in Bolivia, whose directorby foot. When operated by foot, Wolfgang Eloy Buchner, developed this pump in 2008water can be pumped for a much longer time without getting tired.
EMAS is not only the name of the mobile school for water and sanitation, but also a whole technical and social concept of water and sanitation which includes rain water harvesting, solar water heaters, windpower, hydraulic rams, water treatment, small tanks and sinks, a variety of hand and foot pumps, and ferrocement tanks.
==Technical specification==
The pedal mechanism is an addition to a standard [[EMAS pump|EMAS hand pump]]. It consists of a wooden plank which can rotate on an axis fixed to a frame made of reinforcement steel bar. Beneath the plank, a piece of wood with a groove is fixed, which acts as a hinge. Because of this construction, wear of the wood is no problem. If the wood would completely wear out, a new piece can easily be fitted.
The movement of the plank is transferred to the pump handle by a steel bar made of reinforcement steel (10mm). Two door hinges at both ends of the bar ensure proper alignment. The top door hinge is welded to a cross piece made of galvenised steel tube cut in half. This part is easily attached to the handle by rubber strips cut from inner tube of a car (or truck) tire. To protect the rubber from the sunlight, a piece of cloth is wound around the rubber, held in place by a metal wire, or by splitting the end of the cloth and making a knot.
====Operation====
==Cost==
==Country experiences==
The EMAS pedal pump was developed in Bolivia, and is being field tested there.
==Manuals==
==Movies==
* [http://blip.tv/file/2445335 Movie on the EMAS Pedal pump on emas.blip.tv]
==External links==
