The San Francisco Chronicle has a piece up today about the garden here at ModNomad, which is watered primarily by the kitchen sink greywater filtration system we designed for the GoGo Kitchen prototype. I conceived of doing this activism work around greywater when I learned that kitchen sink drain water filtration and reuse is not legal in California, despite the fact that it's legal in many states, including Arizona, Oregon and Washington. I picked up a copy of the book The