Ales remembers collecting cassava from the stagnant pools of muddy water. For Ales Nyasulu, who lives in the Chikwina-Mpamba Area Program in Malawi, cassava is a primary source of food for her family. “We depend on cassava as our staple food in this community. The process of coming up with cassava flour demands that we soak the cassava in water for some days before it is dried up and ready for pounding,” she says. “Since we had no source of potable water, we had to depend on swamps or dirty pools of water along the valleys,” says Ales.