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Dhone

496 bytes added, 21:59, 2 November 2012
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The trough is lowered into the water by exerting pressure using a rope or the foot of the operator until the closed end is submerged in water. Upon releasing pressure the trough comes to its original position and the water is delivered to the irrigation channel. Typical yields of 80-160 l/min can be obtained from the dhone between 0.3-1.0 m.
This device uses flap valves and can be operated by a single person shifting the weight back and forth at the fulcrum. <ref> [http://www.nzdl.org/gsdlmod?e=d-00000-00---off-0fnl2.2--00-0----0-10-0---0---0direct-10---4-----sti--0-1l--11-en-50---20-about-dryland--00-0-1-00---4-4---0-0-11-11-0utfZz-8-00-00&cl=search&d=HASH0150ba4e9f73176fac50b5ae.7.10.8&gt=1 Food from Dryland Gardens - An Ecological, Nutritional, and Social Approach to Small-Scale Household Food Production (CPFE, 1991)].</ref>
==Suitable conditions==
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