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This research presents the design and installation of step solar water pumping system In Ban Hin Lat community, Ban Na Subdistrict, Sam Ngao District, Tak Province. Ban Hin Lat is a community located at a high elevation and far from water sources. The researcher therefore has the idea of designing water pumping systems to transport water from the water source to use for consumption in the community by designing this solar power step water pumping system.
From the research of solar water pumping system. it was found that this system has the ability to pump water into the community's water tanks at an average of 37.92 cubic meters per day. This is enough supply for the water demand of Ban Hin Lat community at an average of 33.50 cubic meters per day. And before installing the pumping system, the researchers surveyed the actual area and planned the work together with the community so that the design would be suitable for the characteristics of the area and the topography of the land.
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