A young student studying art at the Royal College of London invented a water-saving and energy-saving shower system. The new invention has just won the 2005 British Standards Agency Environmental Design Award. The working principle of this system is to use a vacuum pump, the used water into the filter box, and then into the heater installed in the rear of the shower head heating and recycling . Scientists say the system can save an average family £ 170 a year in water bills.

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