International Conference on Rain Water Cistern Systems
USA - June 1982
3: Design, Cost, And Policy
Cost Analysis of Rain
Water Cistern Systems
& PingSun Leung
Univer ty o£ Hawaii at Manoa, USA
The economic feasibility of rain water cistern RWC) systems is an important
factor in its acceptance in the scheme of water resources planning and development.
A cost analysis of this water supply system is complex because socioeconomic conditions
vary in different countries. To present an unbiased cost analysis of a RWC system,
a case-by-case format is preferable and, if possible, a cost comparison with the
existing public water supply system should be also included. In general, RWC systems
are financed with private funds, and public water supply systems with public funds.
However, their costs to users may not differ too much. In addition, the cost of
labour is another factor that should be considered in the cost analysis. It is
this amount of labor that owners contribute to their own RWC systems that is difficult
to document as a cost item. Thus, these factors should be considered by the readers
of this paper.
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