I recently came across an article that brought me upon NexusHaus. The article focused on the water-saving element of their submission to the DOE Solar Decathlon. They came in 4th overall, but I found the solution for water efficiency in an arid region exceptional. Not all areas of our country need to collect water in this manner, but integrating some of the project goals and processes into any home can help save the owner money. Less volume through a septic system will lengthen the life of that system. Not drawing fresh water for landscaping will save water resources as well as the energy to run pumps. Their solution brings the horizon of water conservation closer to home. 

Take a look at the diagram below to see the system they developed specifically for the climate of Austin, Texas.

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