Falaj Daris is one of the most famous Dawoodi aflaj in Oman and the largest falaj in AL Dakhiliah Governorate. It has a powerful flow that exceeds 227 liters / second. Falaj Daris has two branches: the large branch, which is about 1700 meters long with a source depth of 17.5 meters, and the small branch, which has less water is 1900 meters long, and its source depth is about 16 meters. Both the large and the small branches are joining at a point called "Fardh Al-Multaqa". The total of the falaj channels from the source to the demand area is about 7990 m.