7. What is water Efficiency? The United States Environmental Protection Agency describes water efficiency as: âthe long-term ethic of saving water resources through the employment of water-saving technologies and activities.â Who is responsible for it? Each and every individual From top down
8. Why be Water Efficient? Worldwide water consumption up ten fold since 1900 By 2040 population up by 45% At present, 1 third of the worlds population facing water shortages and poor drinking water quality
9. The Evidence The Aral Sea - The 4th biggest sea in-land will not exist in the next decade. The Colorado River - Since the year 2000, the rivers annual flow has fallen to as low as 25% of its level.
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11. Use low flow rate shower heads which use up to 40% less water than traditional ones.
12. Use a displacement device (such as a âhippoâ bag) in your cistern to decrease water wastage from toilet
19. Water Efficiency in Construction Greywater recycling system: Grey water is wastewater from: washing machines, dishwashers, showers and baths. Separate internal drainage system must be fitted. Water stored in tank then Distributed via pump to feed cisterns and garden taps