Puerto Rico has lost more than power. The vast majority of people have no clean water

Hurricane Fiona, which made landfall on Sunday, has damaged reservoirs and water filtration plants. Puerto Rico's only water agency is scrambling to restore services, but officials say they're waiting for flooded rivers to subside. (Alejandro Granadillo/AP)

The vast majority of Puerto Rican homes have been plunged into darkness after Hurricane Fiona wiped out the power grid, but people on the island are facing another devastating emergency: How to access clean water?

With no electricity, there's no power to run filtration systems and no power to pump water into homes. That means no clean water for drinking, bathing or flushing toilets.