Water harvesting and reuse systems background and overview

Water harvesting and reuse systems background and overview Rainwater harvesting system fault diagnosis and rectification Greywater reuse system fault diagnosis and rectification

These sheets will cover: � introduction � brief history � scope of the rainwater harvesting and greywater reuse course � the UK water harvesting and reuse system market.

Typical percentage of water consumption per water-using area of a home Water-using area Drinking water Daily usage per Annual usage person (litres) 5. 2 1898 Personal washing and bathing 42. 9 15 659 Dishwasher/washing up 10. 4 3796 Toilet flushing 39. 0 14 235 9. 1 3322 16. 9 6169 6. 5 2373 Outdoor use Clothes washing Other

Water reuse in hostory (UK) Pre-1900 s – The concept of capturing and storing rainwater for reuse goes back to the 12 th century. 1900 s – Development of mains water supplies and drainage systems saw a decline in the reuse of rainwater. 2000– 2007 – As climate change and environmental issues become more prominent, there is a slight increase in the use of capturing and storing water for reuse. 2007 – The Code for Sustainable Homes is introduced, which includes aims relating to reducing internal and external potable water use. 2010 – The Building Regulations are updated to include maximum wholesome water consumption requirements and reference to the permitted use of alternative sources of water for some purposes.

Group work (4 people) � Write down five ways of: Collecting rainwater in domestic use Treating rainwater in domestic use Using rainwater in domestic use

Group work (4 people) � Write down five ways of: Collecting greywater in domestic use Treating greywater in domestic use Using greywater in domestic use