See how Postgreen Homes may be interested in the Net Zero Water Project and read some dicussion on the topic here
As always, feel free to leave suggestions in the comments anywhere on this site, as every bit of information is helpful.

Water is an invaluable resource and is oftentimes taken for granted. The Net Zero Water standard is an idea that aims to relieve households from dependence on city water, which will decrease strain on water treatment facilities. By capturing precipitation and treating wastewater produced on site, occupants of a household will close the loop of their water system, thus leading to water independence. This site sets out to document my process and research as I look further into this exciting topic.
See how Postgreen Homes may be interested in the Net Zero Water Project and read some dicussion on the topic here
As always, feel free to leave suggestions in the comments anywhere on this site, as every bit of information is helpful.