Dear Friends, Let us make ...
Published by Misha Shifrin, Ozone Application Engineer at Absolute Ozone®
Dear Friends,
Let us make one thing clear, it is scientifically proven that no bacteria or organic pathogens can be absorbed through the plant roots and go in to fruit or leaves, etc.
Therefore there is no problem with using organic in origin grey water if you do not spray it on the plants but rather deliver it through the roots.
Using bio filtration and a bit of polishing with ozone you could turn grey water in to a drinking water.'
Here is 35 second video of the system that does exactly that:
http://absoluteozone.com/ozone-generator-wastewater-treatment.html
I agree with people who state that grey water containing dangerous chemicals is not suitable for irrigation without serious treatment that will make it safe.