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Rooftop rainwater harvesting in Nepal


Water in Nepal is not scarce in absolute terms, and most areas receive about 1500mm of precipitation each year, while certain areas may receive up to 5000 mm. However, many parts still experience water shortages, in particular during the pre-monsoon season (March-May). Sufficient and safe drinking water supply throughout the year is essential to Nepalese rural households. However, communities located higher in the mid hill region do not have access to water either because systems are too expensive or impracticable due to lack of electricity.
In this context, rooftop rainwater harvesting provides a local source of water for drinking or kitchen garden irrigation in many areas where conventional water supply systems cannot be provided, with significant impacts on health and livelihood improvement or rural households.

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