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Subsurface harvesting systems

132 bytes added, 20:33, 7 April 2012
→‎Suitable conditions
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- Subsurface dams are not likely to deteriorate, with little danger of breaching <br>
- Losses from evaporation are very much less than the 2.0 metres lost annually from a free water surface in a dry tropical area<br>
- Construction has long lifespan and require minimal maintenance <br>
- To some degree, subsurface water-harvesting systems improve water quality by filtering water as it moves to the drains<br>
Winona
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