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Around the world, approximately 1.1 billion people have no access to improved drinking water. As a consequence, 1.6 million people die every year from diarrheal diseases attributable to a lack of access to safe water and sanitation. Of the 1.6 million deaths, 90% are children under 5, mostly in developing countries (World Health Organization)

This website makes available a database of software that can be used for the design of gravity fed potable water systems. It includes a summary of each program as well as an overview of their individual strengths, weaknesses, and best applications. For some programs, reviews from previous users are included. This database is meant to serve as a useful tool for students, research groups, professors, NGOs and other community development organizations implementing gravity fed potable water systems. The analyzed software are all free programs: EPANET, GOODwater, Reents Spreadsheet, Air In Pipes, and NeatWork. Other water distribution system software that can be purchased are described and a link is included leading to the site where the program can be purchased. This information can be found on the Other Software page. The Resources page includes suggested documents and manuals regarding the design of water distribution systems.


A comparison of the five analyzed programs is shown below, partly adapted from Stephen Good's 2008 Master's Thesis.
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