International Rainwater Catchment Systems Conference
Mannheim, Germany - September 2001
Rainwater: Quality Issues
Considerations With Respect to Rainwater Harvesting
Applied Research Institute-Jerusalem (ARIJ)
P. O. Box 860
e-mail address: firstname.lastname@example.org
Rainwater harvesting for domestic use is an option, which
has been adopted in many areas of the Palestinian territories since ancient
times. A rainwater harvesting system consists of three basic elements:
collection area, conveyance system and storage facilities.
The technology is based on small-scale rainwater catchments
systems. As rainwater falls of a roof, the water flows through plastic
pipes (4" VPC or plastic pipes) and into a large cistern. The collection
area in all cases of domestic use is the roof of a house or building.
The effective roof area and the material used in construction the roof
influence the efficiency of collection and the water quality. The water
ultimately is stored in cisterns, often excavated in the lime stone rock
formation or in a storage structure, which may be part of the building.
None of the rainwater harvesting systems uses any devices
for filtration or disinfecting, but as a normal practice, the users divert
the 'first flush' water so that it does not enter the storage facility.
This practice is normally implemented once at the beginning of the rainy
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