This Bolivian start-up is helping buildings to reuse water

Aquakit builds greywater-recycling systems for residential and commercial buildings. Its technology can cut buildings’ water use by up to 60%. Greywater is the wastewater from showers, sinks and washing machines. It’s relatively clean but in most buildings, greywater is flushed away with the sewage when it could be recycled and reused in several ways.