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.
--ECOLOGICAL DESIGN COOPERATIVE
Graywater from this Pacific-coast house drains into a planter bed filled with tropical species. A clear overhang shelters the system from rain that might flood it.
Used water from inside discharges into covered troughs of sand, then seeps into the surrounding flower gardens of this Maryland home.
A cutaway of a Washwater Garden shows how plant roots and substrate (layers of sized gravel) filter graywater.
A Washwater Garden is a trench system that uses up graywater discharged by a washing machine alone.
A graywater system is disguised as a 19th-century garden that is toured by the public at The Old Manse in Concord, Massachusetts.