Community involvement is key to the success of rainwater harvesting projects. In Tanzania, community members were involved in all stages of the project, from planning and design to construction and maintenance. This helped to ensure that the project met the needs of the community and was sustainable over the long term.

Technical expertise is important, but it is not enough on its own. In Tanzania, the project team included engineers and other technical experts, but they also worked closely with community members to ensure that the project was culturally appropriate and met the needs of the community. This helped to build trust and ensure the long-term success of the project.

Monitoring and evaluation are critical to the success of rainwater harvesting projects. In Tanzania, the project team used a variety of methods to monitor the performance of the rainwater harvesting systems, including water quality testing and surveys of community members. This helped to identify areas for improvement and ensure that the project was meeting its goals.