Rainwater Harvesting on March 9th-10th, 2012.
"Where there is no surface water, or where groundwater is deep or inaccessible due to hard ground conditions, or where it is too salty, acidic or otherwise unpleasant or unfit to drink, another source
must be sought. In areas which have regular rainfall the most appropriate alternative is the collection of rainwater, called ‘rainwater harvesting’. Falling rain can provide some of the cleanest naturally occurring water that is available anywhere." - http://www.wateraid.org/
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