Field Test Site (IMAGE) Duke University Caption The textile mill in Coimbatore, India, where one of the prototype sanitation systems was tested in a real-world setting. Credit Shamsheer Yousaf Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.