Vox is a general interest news site for the 21st century. Its mission: to help everyone understand our complicated world, so that we can all help shape it. In text, video and audio, our reporters ...

An objection to waterfree urinals is that without a flush of water, urine salts build up and clog the drain line. Sloan Valve and Falcon Waterfree have teamed up to build a waterless urinal that ...