This twentieth-anniversary edition of the world’s best-selling greywater book features a dozen more pages, complete information on the “laundry to landscape” system, new color plates, extensive revisions to every page, and dozens of new photos and figures.

Greywater is the water from showers, sinks, laundry, and washing dishes. It's great for landscape irrigation, and is the keystone that ties all the systems in a green home together. This title describes how to choose, build, and use a simple greywater system. Going deeper, it explains how to integrate efficient fixtures, user habits, plant selection and location, and rainwater, greywater, and freshwater irrigation for your soil and site conditions.

Topics include complete instructions for simple to more complex installations; how to deal with freezing, flooding, drought, failing septic tanks, low perk soil, and conditions in non-industrialized regions; coordinating a team of professionals to get optimum results on high-end projects; and “radical plumbing” that uses 90% fewer resources.

Readers will learn to:

• Save freshwater by irrigating with washwater
• Relieve strain on their septic tank
• Purify wastewater without energy or chemicals
• Make their home more reilient to drought, flood, and climate change
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“Greywater for dummies and greywater encyclopedia in one information goldmine.”
—Dan Chiras, author, The New Ecological Home; The Solar House

“Ludwig is a water visionary... The most practical and complete presentation of the subject I have seen.”
—Michael MacCaskey, editor in chief, National Gardening

“You’ll be in deep greywater without this book!”
—Jeff Oldham, lead technician, Real Goods