View source for Rainwater and Drainage

The Sheffield 1971-2000 average rainfall was 824.7mm http://www.metoffice.gov.uk/climate/uk/averages/19712000/sites/sheffield.html 

==Grey Water Heat Recovery==

* Heat recovery for showers: http://www.shower-save.com/ -- ''"the Shower Save can recover over 60% of the energy when you shower"'' -- this is a 1 storey heat exchange downpipe, they also do shower trays with builtin heat exchanges. Green Building forum [http://www.greenbuildingforum.co.uk/newforum/comments.php?DiscussionID=2957 discussion on grey water heat recovery]

==Rainwater Harvesting==

* http://www.rewatec.co.uk/

* http://www.rainharvesting.co.uk/ especially interesting is their [http://www.rainharvesting.co.uk/pdfs/Communal%20housing%20system.pdf communal system],  -- most terraced houses in Sheffield share their drainage with the other houses they share a passageway with.

* http://www.rainwaterharvesting.co.uk/ Rainwater harvesting systems, rainwater tanks, filters, pumps, flood crates and rainwater management systems

* http://www.ukrha.org/ The UK Rainwater Harvesting Association (UK-RHA) is a company limited by guarantee, having been formed in 2004 to serve as a focal point for organisations with business interests in the rainwater harvesting industry.

* http://www.halstedrain.com/ Halsted Rain, UK leaders in the collection and utilisation of rainwater in the urban environment. 

[[Category:Buildings]]