Good news for Volvic and Evian: Bill Gates funds new machine that filters your toilet waste back into 'drinkable' water

Next time you see a dog lapping thirstily at a toilet bowl, pause for thought - next time, it could be you.

A new invention - funded by Bill Gates - aims to turn used toilet water into drinking water.


Manchester University’s Sarah Haigh is an expert in nanotechnology - the science of manipulating atoms in matter - and says, it could make waste water from toilets safe to drink. 

The innovation - which has been funded by billionaire Bill Gates - could transform the lives of millions of people in the third world.

Haigh believes a new range of materials could extract energy from human waste.       Read More