samindavis

Since gray water systems may be expensive to retrofit, why don't CA municipalities simply require them to be built into new developments while passing the initial costs and water-saving benefits to new home buyers? Any towns or cities starting to do this yet?

It's not hard to redesign a front or back yard with mounds, drought-tolerant perennials, a few large boulders, and some curvy natural decomposed granite [dg] paths. Lots of info and pix on the web.

What has been the European experience with seawater desal slant wells?

http://finance.yahoo.com/news/promising-results-shown-california-american-014400268.html