I want to share with you our new manual for greywater treatment:

www.wecf.eu/english/publications/2015/ma...eywatertreatment.php

Greywater management is complementing sustainable onsite sanitation solutions such as an ecosan toilet.
This manual explains how greywater can be treated in a sand or gravel filter before being re-used or discharged. Different greywater filter designs have been demonstrated in Georgia in two villages close to the Black Sea by the Georgian NGO RCDA with guidance by the student Lukas Huhn from Hamburg University of Technology. The technology is very efficient, relatively simple, low-cost and can be realized by practitioners in rural and peri-urban areas of most settings.

Claudia