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Portal:Greywater

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The Greywater Portal

Planted cattails at Millcreek greywater
Greywater, sometimes also spelled as graywater, grey water or gray water, is all of the effluent water from a household, such as water discharged from lavatories (bathroom sinks), bathtubs, showers, clothes washers, and laundry trays. Greywater is not wastewater from a sink used for food preparation, or water closet (toilet) wastewater.

The water leaving our homes carries nutrients and value. It may also contain pathogens, and/or harsh chemicals and care should be taken with it. However, it is not a great risk compared to blackwater (sewage).

Redirecting the water we use for tasks such as showering allows us to reclaim some of that value to grow plants and recharge the water table. It may be necessary to choose our soaps and detergents more carefully, if we use the greywater for watering and fertilizing plants.

Main portal: Water
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Truth Tank implemented solution
The Samoa Hostel Truth Tank Greywater System was designed to provide a greywater treatment system for a satellite solar shower located on the grounds of the Somoa Hostel. The system was designed to follow California greywater standards while also meeting the criteria of the Humboldt Bay Center for Sustainable Living. After careful consideration of alternative solutions, a final design was chosen and constructed at a private home for testing before its eventual implementation at the Samoa Hostel in the spring of 2011.

The Humboldt Bay Center for Sustainable Living is constructing a hostel at the Samoa Cookhouse to serve as inexpensive lodging for travelers as well as an experiential education opportunity in sustainable living and historical restoration. The hostel will include campsites, which have their own solar powered shower facility. The greywater produced by the shower will be treated and disposed of by the Truth Tank Greywater System.The system will be tested by using it with a claw foot bath tub before moving it to the Samoa Hostel for use with the solar shower.

CCAT Wash n Flush

Are you on a purified water grid? Frustrated at flushing your bodily waste with some of the cleanest drinking water in the world? Do something about it.

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Greywater
AEF greywater · Emergent plants for constructed wetlands  · Greywater Ecuador La lagrima purificadora · Millcreek greywater · Occidental greywater · Samoa Hostel Greywater Island · Samoa Hostel Truth Tank · Subsurface flow constructed wetland for greywater
CCAT greywater
greywater grease trap · greywater marsh · greywater marsh problems · kitchen effluent particulate filter · Wash n Flush
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Things you can do

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External resources

Interwiki links
  • Akvopedia - focused on water technologies.
  • WaterWiki.net - a UN sponsored wiki - most of the content indexes the work of UN agencies.
Sites

Appropriate technology · Built environment · Business · Construction and materials · Culture and community · Design · Energy · Energy storage · Engineering for Sustainable Development · Food and agriculture · Government supported development programs · Governments and sustainability · Green living · Greywater · Health and safety · Heat exchangers · Hybrid power systems · ICT and Education · Information technology · Learning · Medical Devices · Net Impact · Permaculture · Photovoltaics · Projects · Rainwater harvesting · Renewable energy · Service learning · Solar · Solar thermal · Sustainability · Sustainable business · Sustainable city living · Sustainable energy storage · Sustainable farm energy alternatives · Transport · Water Agricultural