Greywater was always something that looked and sounded extremely difficult and complex fraught with health hazards and costly to implement. In fact building a greywater system at Permaship has been one of the simplest ,cheapest and rewarding projects we have undertaken so far. That is not to say every system will be simple in fact greywater design is the most context dependent system you can build into a garden and will differ drastically from site to site.
To take a look at how and why we did it follow the link below
https://sites.google.com/site/permaship1/permaculture-practice/graywater-garden
Ha, my ex-boyfriend, who's from Ohio, designed that system in Bulgaria. How funny and awesome is this small globe.
This looks like a great way to get plants to digest all the nutrients in greywater, and irrigate at the same time!