This book provides a state-of-the-art review of practice in the collection of rainwater. It presents case studies with numerous examples from around the world which will help anyone intending to design or construct a rainwater catchment system. The prime focus of the book is on implementation of roof and ground catchment systems for meeting either total or supplementary household water requirements. All aspects of design and construction are covered including simple methods of sizing systems, erection of gutters, choice of materials, construction techniques, training, operation, and maintenance. Ina addition, non-technical factors such as water quality, health, social, financial, cultural, political, institutional, and general issues are discussed. The text is fully supported with drawings, photographs, and detailed step-by step accounts for several different types of household rainwater tanks. The material is based on practical experience learned over 20 years of constructing and researching rainwater systems in Africa and Asia. It will be of use and interest to project managers, development workers, water engineers, architects, builders, and researchers.