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Rainwater harvesting

Rainwater harvesting facilities in the village of Epyeshona - household  approach

Rainwater harvesting facilities in the village of Epyeshona - household approach
Image Credit: CuveWaters 2012

...and communal approach

...and communal approach
Image Credit: CuveWaters 2011

Local trainees preparing a roof for rainwater harvesting

Local trainees preparing a roof for rainwater harvesting
Image Credit: CuveWaters 2010

In CuveWaters, facilities for rainwater harvesting have been piloted in the village of Epyeshona, near Oshakati, since 2009. During the short rainy season, rainwater is harvested on rooftops and concrete surfaces. It is stored in tanks made of different materials. The harvested water is of fairly good quality and is mainly intended for gardening purposes, but can also be used for washing, cooking or watering livestock. Gardens with water-saving drip irrigation systems were established next to the tanks. As part of capacity development, the project provided training and enabled local people from the village to build, operate and maintain the facilities. Furthermore, people have learned to cultivate and manage gardens, and to make profits from the yield.

CuveWaters is testing two technical and organisational options for rainwater harvesting: the household and the communal approach:

The household approach

In the household approach, water is harvested from the roof of three single households and stored in above-surface tanks made of different materials, namely ferrocement, bricks and polyethylene. All tanks in this category have a useable volume of 30 m³.

(CuveWaters 2013)

The communal approach

The communal approach comprises five different households that work together. It consists of an underground tank, a covered pond, a greenhouse and an open garden area. The greenhouse and parts of the outside garden are jointly operated, meaning that the farmers equally share their work and their gain. Additionally, every farmer has an own lot, which can be used for self consumption or market production of fruits and vegetables. Advantages of greenhouses are the prevention of evaporation, temperature control and the protection of plants from wind and pests.

(CuveWaters 2013)

Read more about the success factors for implementation of this method as well as the achievements documented within the CuveWaters project.