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Handpumps : toward a sustainable technology - research and development during the water supply and sanitation decade (英语)

Water is a fundamental human need. Four fifths of our planet is covered by it, but untreated surface water is rarely fit to drink. Yet in most inhabited parts of the world, unpolluted groundwater can be found below the surface. Handpumps provide a cost-effective means of access to groundwater, and therefore have an important role to play in delivering safe and sustainable water supplies to communities in developing countries. "Community Water Supply: The Handpump Option" was published in 1987 and summarized handpump research and development undertaken with the UNDP-World Bank handpumps project up to and including 1985. This report deals primarily with subsequent research, both into existing handpumps and specific handpump topics. This report is in four parts: Part A, an overview, describes the context of handpump research and explains why it was necessary for the UNDP-World Bank handpump project to be involved in directly sponsoring research; Part B gives details of the research undertaken in a number of specific topics of handpump development, principally by the Consumer Research Laboratory (CRL); Part C summarizes work carried out in project field trials since the publication of "The Handpump Option"; and Part D summarizes the results of laboratory tests on handpumps carried out by CRL since publication of "The Handpump Option."