Greywater systems

Greetings

I am wondering if any Eichler home owner has installed a greywater system for bathroom (sink, shower, tub) to landscape? I am not talking about the Santa Clara County Water District's Laundry to Landscape with rebate program, but other greywater systems. We will be remodeling starting next month (adding a butterfly roof over atrium, re-doing both baths, expanding master bedroom - woohoo!) and we're researching options for possible greywater use.

thanks

Carrie