International Conference on Rain Water Cistern Systems
"Rainwater Catchment for Future Generations"
Keelung, Taiwan, R.O.C. - August 1991
3: Catchment and Storage System Designs
Ground Tanks In Urban
Or Rural Settings; The Answer To Water Crisis
Development of Environmental System, Inc., Philippines
The Philippines is a tropical country situated approximately between latitudes
5° and 20°, north of the equator and longitudes 117° and 126°.
This island is annually visited by an average of 30 typhoons dumping an average
of 2500 mm of r ins. This large amount of rainfall, however, is not evenly distributed
throughout the year thus causing long periods of wet and dry months
Analyses of the annual distribution of rainfall shows that during the period
from January to June, the rainfall is about 31% of the annual average while from
July to December tuber, the rainfall is about 69% of the annual average.
It is to the problem of water crisis brought about by the long dry, spell that.
the use of around tanks is addressed. It can be concluded that rain water recovery
through the use of ground tanks is an economical method which can be utilized
in urban as well as rural water supply systems. Furthermore, ground tanks will
also help in minimizing the flooding problem accompanying intense rainfall.
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