Guidelines for Greywater Reuse. Country/Territory Saudi Arabia Document type Miscellaneous Date Source FAO, FAOLEX Subject Water Keyword Recycling/reuse Sewerage Geographical area Asia, Middle East, Near East and North Africa, Persian Gulf, Red Sea & Gulf of Aden, Western Asia Abstract These Guidelines for Greywater Reuse are developed to raise awareness of the importance of benefiting from graywater recycling, by introducing how to treat and recycle graywater for using it in flush tanks and agriculture and the best method for this treatment. Full text English Website www.mewa.gov.sa