While teaching in Uganda in 2010, American college student Kathy Ku noticed that both she and her host family were getting sick a lot from drinking the water. She kept thinking about the problem even after she was back in school at Harvard University, designing a ceramic water filter and getting other students involved. She [then] took a year off to pursue the idea in earnest. Ku wasn't aiming just to bring water filters into Uganda. She wanted to actually make them there, sourcing the needed clay and sawdust locally. Now, five years after that exploratory visit during her year off, Ku and co-founder John Kye have a full-fledged water filter factory near Kampala. Their organization, Spouts, has grown to more than 40 staffers and distributed about 14,000 ceramic filters, which remove 99.9 percent of bacteria. "There's this method of cleaning your drinking water by leaving it out in clear plastic bottles in the sun. So I figured, OK, let me try that. I took a swig of the water and essentially spit it back out because it tasted like burnt plastic, and it was really warm," [said Kathy]. "I thought there had to be a better solution that people would actually like to use." Our [new] factory has the capacity to make 10,000 filters a month. We're closer to 1,500 to 2,000 filters a month now, but ... it has the machinery and the capacity to do a lot more."