Being green just got a bit simpler. Thanks to the people at AQUS you can effectively recycle your gray sink water and use it to flush your toilet. I haven't purchased this wonderment yet but believe me, it's on my list. Not only to help the environment but to help lower my ever growing water bill. I'm a big DIY'er so it doesn't look hard to install. Thoes that are not that hands on inclined my want to consult a plumber.