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Graywater
 Websites presented in alphabetical order Graywater Guide 
 This 1995 guide describes the proper uses for gray water ("untreated household waster water which has not come into contact with toilet waste") under California Graywater Standards. Topics include why one would use gray water, and the steps for installing a gray water irrigation system such as planning, obtaining a permit, system inspection, and maintenance. Opens directly into a PDF document. From the California Department of Water Resources. http://www.owue.water.ca.gov/docs/graywater_guide_book.pdf Topics: Water Last updated Sep 3, 2008 Graywater Reuse and Rainwater Harvesting
"Graywater refers to the reuse of water drained from baths, showers, washing machines, and sinks ... for irrigation and other water conservation applications. Contrary to common belief, graywater is not a 'safe' product -- it contains bacteria and other potential pathogens. Consequently, the potential reuse of graywater is a public health issue, not a water conservation priority." Includes discussion of water quality issues for gray water and harvested rainwater. From Colorado State University Extension. http://www.ext.colostate.edu/pubs/natres/06702.html Topics: Water Last updated Aug 25, 2008 Grey Water: Recycling Water at Home
Fact sheet about "various health and environmental risks involved if you don't use grey water [waste water from non-toilet plumbing systems] safely." Topics include never using "black water" (water that has come in contact with toilet wastes), common contaminants in gray water, health risks from different water sources, irrigation systems, and improving gray water quality. From Better Health Channel, State of Victoria, Australia. http://www.betterhealth.vic.gov.au/BHCV2/bhcarticles.nsf/pages/Grey_water_-_recycling_water_at_home?OpenDocument Topics: Water Last updated Aug 25, 2008 Recycling Gray Water for Home Gardens
"Gray water is all the non-toilet wastewater produced in the average household. ... Although gray water does not need extensive chemical or biological treatment before it can be used in the garden as irrigation water, it still must be used carefully" because it usually contains contaminants. This paper describes how much gray water can be used in a home garden, precautions, and how to transport the gray water. From University of Massachusetts Amherst Extension. http://www.umassgreeninfo.org/fact_sheets/plant_culture/gray_water_for_gardens.html Topics: Water Last updated Aug 25, 2008 |
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