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EMAS
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EMAS, or "Escuela Movil Aguas Y Saneamiento Basico" (Mobile school for drinking water and sanitation) was founded by Wolfgang Eligius Buchner to address the drinking water problem.
EMAS receives support from a group of volunteers from Munich, Germany. Although EMAS does not finance projects, it can give support - as a partner - to local initiatives by means of practical and theoretical training through the "learning - performing" method. Upon request, EMAS performs an advisory role in Latin America, Africa and Asia. EMAS also provides intensive training courses.
===Purpose===
===Technology===
* [[EMAS pump]]: These are manual pumps that the user easily learns to build, since they are made of PVC piping or of Polyethylene. The pressure or the water volume to be pumped can be determined varying the diameter of the cylinder. In Bolivia, the cost of a 12 meter length standard pump is of approximately 20 Euros. EMAS pumps are fit for multiple use. They are set up in wells drilled with a reduced diameter (EMAS system), engine operated drilled wells, hand excavated wells, cisterns, micro impounding and pumping plants. Their main advantage is that the user himself can build them and reproduce them with materials from the hardware store and at low cost. Once the well is clean and activated, the pump is installed. EMAS has developed this type of manual pump which is cheap, simple in its construction and maintenance and, most of all, it fits in a narrow well of only 1 1/2" diameter (EMAS well).
* Pedal adapted EMAS pumps: There are 3 constructive types of pedal operated pumps designed by EMAS. It is useful because pedal work is less tiring than manual pumping. Differing from other patterns, EMAS pumps have the advantage of conveying water from a fairly good distance, or to elevate it to a height up to 40 meters. Pumps can be built for flow or height, merely varying the diameter of the cylinder.
* The hydraulic ram: The hydraulic ram is a sort of a pump driven by the energy of water in motion itself. A ram is easy to build, it is endurable, it does not consume fuel, but it pumps only a small part of the water it uses (3 - 10%).The use of the hydraulic ram is limited, but whenever used, it is greatly profitable.
* [[Jetting - EMAS_method|EMAS manual deep drilling]]: With this drilling method you can attain down to 100 meters depth in soils of fine material which do not contain stones. The drilling has only 2 inches diameter. The average yield of these EMAS wells is 1 liter per second, that is to say 3600 liters per hour.
* EMAS drilling system by sucking: Manual deep drilling is made difficult when there are pebbles, small stones or thick sand present. The suction system can be used in that case.
* Windmill with the EMAS pump: The EMAS pump can be easily adapted to windmills. These mills may be simple, since no gear is necessary for pumping, and this means a higher yield and less investment cost.
* EMAS pattern solar heater with no tank: This pattern has been developed by EMAS specially for the Altiplano, where during winter nights frost is intense, and a beaming sun predominates during the day.
==Movies==
Many of the EMAS technologies can be seen on [http://emas.blip.tv The EMAS Blip TV Channel]
