See-saw water pumping for agricultural purpose

This document presents the findings of 12 years work devoted to evaluating the technology available and the management options for implementing large scale water supply systems for the community. Among the low-cost options with better chances are the systems, include extraction of underground water using reciprocating pumps, see-saw pump, this being one of the most affordable and sanitary means of lifting groundwater to the surface. A more direct benefit of the improved water extraction systems is the reduction in time and energy to take the water. Combining this work with the recreation of the children using beam pumps, makes the task of water recollection in less than an hour a day, compared to the many hours that women and children spend on transport, causing a major limitation in the use of water when the distance to the source is very big. The pump was designed as an instrument for women and children work because traditionally in our country, this responsibility of domestic work falls on them. For applications in schools, childrenâ€™s farms, family welfare centers, it was developed an even longer arm to match the capacity and weight of children. It provides a substantial margin of storage to absorb the seasonal variations in supply and demand. It enables staged development without incurring high upfront costs for storage concept, distribution lines, treatment plants, etc. necessary to meet satisfactorily the end demand in a distribution system fed by surface water. The beneficiary communities are able to assume the maintenance of the pump. The key element in this type of management is the option for the community and its organization for the maintenance and repair of pumps. Its success is linked with a sense of communityâ€™s priority of the well and pump, and it can only be achieved when the community has a capacity for organization and availability of the basic tools, spare parts and basic knowledge for the maintenance.

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