Greywater-harvesting systems without pipe
You don’t always need pipe to get greywater to the rootzone of the plants you want to water…
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A sponge-like mulch of organic matter would help quicken the rate of infiltration into the soil.
See Muonde.org for more on such good work in Zimbabwe.
A greywater puddle is an anaerobic, stinky problem. A greywater sponge of vegetation and mulch rapidly absorbing the water is an odorless solution. And if one area becomes saturated, direct the greywater to other areas to spread the wealth, and keep the soils aerobic in all areas.
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Greywater is rapidly absorbed within mulched basin and roots of its perennial vegetation. No puddles, no mud, no odor.
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Volume 2
For more, see chapter 12 of Rainwater Harvesting for Drylands and Beyond, Volume 2, 2nd Edition available at deep discount direct from the author; and Art Ludwig’s book Create an Oasis with Greywater.