Rainwater harvesting and primary uses among rural communities in Ghana

Abstract

Rainwater harvesting (RWH) has been practised over many decades for various purposes, including domestic use. The practice contributes largely to sustainable development in terms of providing ‘free’ water to many people. This study assessed the primary uses and benefits of rainwater to rural residents by conducting a questionnaire survey of 48 households actively practising RWH. Samples of the rainwater were also tested in the laboratory to examine the quality and potential health risks. The results show that rainwater was used for potable and non-potable purposes by the locals particularly in the rainy season. Bathing accounted for the most use (53%), while the potable use was just 7%. The majority of users (73%) reported a positive impact of the practice on their lives, and the reliability of rainwater was highly ranked. The physicochemical properties of rainwater were good, but the study highlights the need for better management of the technology to ensure optimal quality. Overall, the findings provide substantial evidence on the benefits of harvesting rainwater and recommend greater use of rainwater, especially in areas with no or limited access to a public water supply.