Abstract
Abstract This study aims to evaluate the post-installation performance of household (HH) rainwater harvesting (RWH) systems in the southwestern coastal region of Bangladesh. A conceptual framework for evaluating the effectiveness of RWH systems was developed based on seven determinants. An application of multivariable logistic regression showed that family size, monthly income, the practice of tank and downpipe cleaning, and the organizations supporting the installation were the most significant parameters (p< 0.05) affecting the effectiveness of the RWH systems. A family size of 1–4 has higher odds of having a properly functioning system (adjusted odds ratio (AOR) = 28.3; 95% confidence interval (CI) = 4.8–167.7) than a family of 9 or more. The practice of tank cleaning once per year (AOR = 3.3; 95% CI = 1.2–9.1) and downpipe cleaning more than 3 times/year (AOR = 9.7; 95% CI = 1.5–62.5) had higher odds than HHs practicing no cleaning at all. RWH systems installed by institutions other than the Department of Public Health Engineering, and NGOs had higher odds (AOR = 22.0; 95% CI = 2.3–213.0) compared to systems installed on their own. This study provides clues to strengthening the existing RWHS intervention programs in the water-challenged regions of Bangladesh.
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