Ever have a hankering to have the ability to filter toilet waste back into something you can drink?
Bill Gates does as he funds a new machine that reportedly can do just that.
Next time you see a dog drinking from a toilet bowl, pause for thought - soon, it could be you.
A new invention - funded by Bill Gates - aims to turn used toilet water into drinking water.
Although the result may not be bottled mineral water, the researcher says the results could be the difference between life-and-death in regions without clean water.
This innovation could transform the lives of millions of people in the third world