Actually, it may be a good idea to use wastewater to use on our landscaping and other non potable uses. Good recycling. "By some estimates there are already 1.7 million graywater systems at work in California - the vast majority without permits. Nationwide, there are about 8 million, according to Art Ludwig, a Santa Barbara environmental designer and leader in the graywater field."
The real question is why aren't we doing more of this?
More...
The real question is why aren't we doing more of this?
More...