permaculture

[mIEKAL aND <dtv@mwt.net>]

CMHC's Healthy House in Toronto provides clean water for all household 
and landscaping needs - without using municipal services.

Rain and snow collected from the roof provides all of the water supply. 
Water is stored in an underground cistern and purified without the use 
of chemicals.

All waste water, which would ordinarily drain into the municipal sewage 
system, is treated in the home in a system that duplicates the soil's 
natural filtration process. It is then recycled for use in toilets, 
showers, and the washing machine. Water is typically recycled up to 
five times, with a small amount being safely released into the soil 
each day. Microorganisms, oxygen, ultraviolet light and charcoal are 
used to treat waste water flowing into the soil so that it is not 
harmful to the environment.

http://www.cmhc-schl.gc.ca/popup/hhtoronto/water.htm