Diarrheal disease from drinking unsafe water is one of the leading causes of death in Mexico. Today, millions of Mexicans in low-income communities are still at high risk of waterborne diseases because of inadequate water infrastructure and insufficient water quality control. In particular, safe water remains unavailable to those who cannot afford commercially sold bottled water. Water technology like the UV Tube, developed through collaboration between UC Berkeley and Fundacion Cantaro Azul, is an effective means to secure water quality at home. Nuestra Agua, a new social franchise designed by UC Berkeley students, will expand on the UV Tube project and offer a local, affordable, and reliable option for people who need to purchase safe water as well as an economic opportunity for local entrepreneurs.