Why some cities turn off the water pipes at night

For more than a billion people around the world, running water comes from water systems that turn on and off at certain times. A new article proposes a model to explain why and how these systems come to be -- and how they fit into meeting international targets for human development and safe drinking water.

from Top Technology News -- ScienceDaily https://www.sciencedaily.com/releases/2019/07/190702152753.htm