Senegal-Benin 10

Senegal-Benin 10

Erdman shows Fall water chlorinator

Mike Erdman, the Walter L. Robb Director of Engineering Leadership Development, right, shows Papa Fall, a managing partner with Sunu Harvest, a student-designed water chlorinator, made of inexpensive PVC pipes. Also looking on are mechanical engineering graduate student Erick Froede, second from left, and one of the cooperative's farmers.

Image: Curtis Chan