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Blue Tap

Blue Tap is a social enterprise that is changing the way the world consumes water. 3D printing is used to build a low-cost water purification technology for users in the developing world with an aim to reduce disease.

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What critical problem are you addressing?

Diarrhoeal disease is the second leading cause of deaths of children under 5 and is majorly influenced by the quality of drinking water. Currently, those who don’t have access to household drinking water are either boiling their water (which leads to lung health problems) or drinking bottled water, which creates an enormous amount of plastic waste. The scale of the problem is huge – over 672 million people could benefit from our technology.

How do you provide a problem to this solution?

Blue Tap has designed a 3D printed chlorine injector which requires no moving parts to function. It inserts the correct amount of chlorine into a clear water supply in order to make it safe to drink. The product is ideally suited for rainwater harvesting systems or municipal water supply taps. It is easy to produce, install and maintain.

The use of the Blue Tap purifier can not only reduce the spread of waterborne disease, but can also empower low-income populations to take control of their own drinking supply.

UN Sustainable Development Goal addressed:

Clean water and sanitation

What inspired you to start Blue Tap?

While working as a water resources engineer in a refugee camp in South Sudan, I ordered a product which doses water with chlorine for over £1000. This seemed like an extortionate cost. So in 2016 when I came to Cambridge to do my PhD, I was motivated to use 3D-printing to design the Blue Tap chlorine injector for a more affordable price.

The Future 20 programme has given us structure and opened up business possibilities we hadn’t even thought of

Find out more about Blue Tap