Take a gander at a this article in the Voice: Showers to Flowers

The article is about using gray water to irrigate home gardens. What is gray water you ask? Gray water is recycled water from sinks, washers and showers. Wiki Article
Sounds like a cool option but I would have concerns about putting soaps and detergents directly into my garden…
Marco Gonzalez is featured in the article…”Gray-water systems are designed to provide irrigation, not potable water. So in some way they work to continue to support the paradigm of over-landscaping our residences,” Gonzalez said. “We should be putting in plants that don’t use a lot of water, regardless of where the water comes from.”