As the ongoing water shortage in Cape Town shows, we should never take our water supply for granted.

Droughts, earthquakes and pollution are just some of the things that can lead to clean water becoming scarce. And without access to clean water, people can rapidly lose their hydration, hygiene – and ultimately their health.

To give you just one example, it’s estimated that 842,000 people a year lose their lives to diarrhoea as a result of unsafe drinking-water, hand hygiene and sanitation. I’m sure you’ll agree, these are shocking numbers.