Rainwater Harvesting for Drylands and Beyond by Brad Lancaster

Greywater Harvesting

Rain- and greywater-harvesting garden on periphery of small yard in Tucson, AZ. Roof runoff is directed to basins via a downspout, then pipe (beneath the path—see dotted blue flow arrow). Kitchen-sink dark-greywater is directed to basins via a branched-drain pipe system (purple dotted pipe). Washing-machine greywater is directed to basins via a multi-drain system (purple dotted pipe). With each load of laundry the washing machine’s drain hose is rotated from one greywater drain to the other (each discharging greywater to a different section of a mulched basin and its plantings). Greywater is discharged to multiple points, rather than one, to ensure soil stays aerobic and odor-free. All systems use gravity to distribute the water for free. Thus all pipes maintain a minimum 2% slope (1/4-inch drop per horizontal foot, or 2-cm drop per horizontal meter).

The following resources are meant as supplements that build on the info in the greywater chapter and appendix in Rainwater Harvesting for Drylands and Beyond, Volume 2

As to the links below:
Begin with Stub Outs if building a new home or doing a major retrofit or add-on.

The Plumbing section gives you additional images and installation tips for some of the different systems described in the book.

The Greywater Laws, Ordinances, and Guidelines are some of my favorites which can also be used as templates informing policy change elsewhere. The same goes for the Financial Incentives & Tax Credits section.

The Greywater Compatible Soap & Detergent section will inform your product choices, so you don’t harm your plants, soil, or self.

The Greywater Handbook of Santa Barbara County is a free downloadable guide I collaborated on with Art Ludwig. It offers an integrated approach and the new potential that comes with it.

Drops in a Bucket Blog

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Upcoming Events

  1. 24th Annual Dunbar/Spring Neighborhood Rain, Tree, & Food Forest Planting January, 2020 – Tucson, AZ

    January 18 @ 8:00 am - 12:00 pm
  2. Water Harvesting Presentation, Book Release & Signing with Brad Lancaster – Phoenix, AZ

    January 24 @ 7:00 pm - 8:30 pm
  3. Borderlands Regional Watershed Restoration Practitioners Workshop

    February 8 - February 9
  4. Spring 2020 – Permaculture Design Course, Tucson, AZ

    February 8
  5. Online Water Harvesting Course Through Oregon State University

    February 10 - March 15


Umbrella Newsletter

The Umbrella: Winter 2019/2020

THE UMBRELLA: A catch-all of resources, events, media, and more from Brad Lancaster   Rain Planting E-BOOK now available! Rainwater Harvesting for Drylands and Beyond, Volume 1, 3rd Edition now available in E-BOOK format Plant the Rain gifts Get holidays gifts that spread the word and practice on how we can make the world a […]

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