'Be prepared for the long haul'

Not many people get business ideas in an open boat in the middle of the Indian Ocean.

But it was during a rowing expedition from Australia to Africa that Jamie Douglas-Hamilton discovered something: fresh water mixed with sea water is more refreshing than fresh water alone. That is because sea water contains a huge amount of alkaline salts which the body needs.

Back on dry land, he started to develop a high-alkali water called Actiph. However, getting the product from drawing board to shop shelf took more time and more money than he had imagined.

Video journalist: Jeremy Howell

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