If ever there was a thing we took for granted it would be water. Our connection to this precious commodity, our awareness of it, begins and ends at the mouths of the taps in our homes and workplaces. We know little of the impossible journeys it makes to get there - Where does it come from? How far does it travel? What happens to it along the way? It is only when our taps run dry that we reflect on these questions. It is only then that we wonder about the other lives that are touched by the water we finally use.