International Conference on Rain Water Cistern Systems
"Rainwater Catchment for Future Generations"
Keelung, Taiwan, R.O.C. - August 1991
10: Country Reports and Future Outlooks
As Supplemental Source For The Traditional And Modern Water Supplies For Forming
Families In Malawi
Meteorological Department, Malawi
Rainwater harvesting simply means collecting rain water in some suitable reservoirs.
To achieve this simple phenomenon a systematic process has to be followed.
This involves provision of an ideal surface area, referred: to as catchment-area
` and the receiving tank or reservoir referred to as cistern.
The family rainwater harvesting system is expected to provide water for all
their needs, drinking, cooking -washing, irrigation etc. But there are several
limiting factors that regulate the volume of water collected. The natural factors
are the potential- annual rainfall and the duration of the dry season. The adjustable
factors are the collection surface (roof) area or catchment area and the cistern
capacity. The most important limiting factor is the FUND.
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