Israel: Bringing Clean Water

Article: Engineering students at Tel Aviv University decided to build a system that would provide hundreds of students in a Tanzanian high school with clean drinking water. Find Tanzania on a map. Recently, the students visited Tanzania to build the system, led by the student club, Engineers without Borders. Here's the background:

In Northern Tanzania, the local drinking water is contaminated with extremely high levels of fluoride, causing the local children to have skeletal deformities and severe dental problems. The Israeli students built and installed a rainwater harvesting and  filtration system that allows 400 students and staff members at the local high school to drink and cook with clean, safe water. They also trained school officials and volunteers on how to operate and maintain the system, and they kept in touch with local residents to ensure that any problems would be worked out. The team created the system with the help of Israeli rainwater harvesting expert Amir Yechieli. The school's principal wrote the team a letter of thanks, saying,"Thanks to this project, we are now one family with you. Let us maintain our relationship more and more.” In this way, the Tel Aviv students were not only ambassadors for Israel in Africa, but saving lives! The team plans to return to build another filter for the village's medical center and to install solar panels.

See this video on the topic.  

What would you design to help people? How would you build it?