1. Water Efficiency By Paul Boylan

3. Water cycle is one of constant renewal.

4. 4L water to produce one bottle of beer.

5. 500L water to produce 1 orange.

7. What is water Efficiency? The United States Environmental Protection Agency describes water efficiency as: “the long-term ethic of saving water resources through the employment of water-saving technologies and activities.” 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.

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 ‘hippo’ bag) in your cistern to decrease water wastage from toilet

13. Fix any dripping taps, cisterns etc.

14. Take shorter showers

17. Diversion of foul water

18. Foul flush systemDesign Features: No nests Trees Toxic

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

21. Better treatment (topsoil is many times more effective than subsoil or treatment plant)

22. Less energy used

23. Groundwater recharge

24. Plant growth

26. Any questions?