Changes

Natural ground catchment and Open water reservoir

95 bytes added, 18:07, 6 April 2012

→‎Construction, operations and maintenance

====Size the pond====

[[Image:SmallNaturalPond.JPG|thumb|right|400px|Small, natural pond for rainwater harvesting.]]

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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