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Natural ground catchment and Open water reservoir

86 bytes added, 22:19, 30 July 2012

→‎Size the pond

====Size the pond====

[[Image:SmallNaturalPond.JPG|thumb|right|350px|Small, natural pond for rainwater harvesting.<br> Photo: [http://ruralradio.cta.int/RainwaterHarvesting.htm CTA Rural Radio Packs.]]]

Pond size (and therefore dam height) can be decided according to water demand, evaporation & seepage losses, length of critical period and average stream flow according to the following:

* Determine water requirement (R litres/day)

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