Grow With the Flow: Legal Uses of Graywater

Graywater is going legit! Learn how to use it legally with Natural Home's guide to graywater.

At the EcoHouse in Berkeley, California, graywater from a washing machine and bathroom drains to a small wetland. Then it runs to gravel- and mulch-filled troughs, where it leaches to the roots of plants and trees for more filtration.