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Where Can I Learn How to Re-circulate the Greywater in My Ranch House?

6/1/2008 12:00:00 AM

Tags: water, water conservation, conserving water, greywater

Where can I learn how to re-circulate the greywater in my ranch house?

Greywater — which is all household wastewater except for toilet water — can profitably be reused for irrigation. But by “re-circulate,” I assume that indoor reuse is what you are asking about, and that’s not always the best idea. In order to reuse waste water for flushing toilets, for instance, you would need a multi-stage filter, holding tank and some kind of pump. All-in-all, that’s an expensive project.

Reusing greywater for flushing toilets, while an excellent practice on a large scale, rarely holds up to life cycle analysis when practiced on a residential scale, since so much hardware, electricity, chemicals and maintenance are used to save so little water.

There’s a more thorough analysis of this issue, the preferred practices and exceptions in our compendium of common greywater errors, and more on indoor greywater reuse.

The more common reuse of household waste water from showers, sinks and washing machines is for outdoor irrigation of trees and bushes. You’ll find complete information in our book Create an Oasis with Greywater, and information on simple systems free, on our website.

Art Ludwig, Oasis Design

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7/19/2010 10:31:21 AM
While landscape irrigation is a re-use method for grey water, internal toilet flushing is not only viable, but saves 30%-40% of your household residential usage. To discourage greywater reuse for toilet flushing because of hardware, electricity and chemicals is a non-productive self serving argument. There are a number of systems, Aqus, Brac and Water Legacy that are UPC certified that are manufactured to save your water through greywater re-use. I have a water legacy system in my home and I have been saving at least 40% of my water consumption over this time last year.

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