Project description:

With persisting incidents of notorious rainstorm, flood and erosion as a result of high intensity and unpredictable rainfall, there is need to appropriately harvest and store some of this enormous rainfall (1500-2000mm per annum) in order to support amongst other benefits, the clean domestic water needs of the Uzinomi community who currently source their drinking water from a remote polluted puddle. However, one major constraint that affects the immediate take-up of roof water harvesting in Uzinomi and elsewhere is the ‘excessive’ cost of Rain Water Harvesting (RWH) components and systems and the absence of a supply chain for delivering them to households (HH). These hampers the ability of most households from going beyond current opportunistic rainwater harvesting and reasonably reduce the amount of accumulating runoffs in the area as this offers a chance for effective adaptation. The project will support 1000 HHs yearly to sufficiently harvest and safely store rain water, vital in meeting their domestic needs as well as retarding the huge amount of runoff generated after every rainfall incidence. By supporting HHs, we aim to facilitate easy adoption of sustainable rain water harvesting and its multiple benefits such as drinking, sanitation, cooking, laundry, home gardening, bricks making, horticulture, car washing and the environmental gains of runoff control etc. To realize this, the project will set up a local manufacturing and assembly plant for RWH system components and generate jobs for about 20 rainwater installers who shall be responsible for marketing and installation of the systems for HHs. Assuming a rainfall collection efficiency of 80 percent, ‘hard roofed’ houses measuring up to 609.6m2 will successfully yield about 3785.5 litres or 1000 gallons of water. This offers a substantial amount of water sufficient to impact on runoffs and make for a reliable and economic source of water even during short-term drought.

Leapfrogging Current Approaches

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