A group of people are on their way by bus to an underground meeting to learn how to do something that is illegal in parts of the country. And what would that be? They are going to a workshop to learn how to install clandestine greywater systems in their yards!
The video shows the steps to reconfigure your plumbing to be able to use your greywater for growing food — how to filter it through mulch and safely reuse it on plants — instead of draining it all away.
Please watch video!

Bad news: Greywater reuse offers much more benefits than are realized in most systems.
Good news: Even the worst shortfalls in greywater design rarely cause actual harm, and for the few that do, it's not much.
The safest way to handle greywater is to introduce it directly to the biologically active topsoil layer, where soil bacteria can quickly break it down, rendering the nutrients available to plants. This biological water purification is much more effective than any engineered treatment, thus protecting the quality of groundwater and surface waters.