The gardens were watered via an aqueduct which drew water from the Oued Fes through an enormous noria or water wheel, approximately 26 meters in diameter, which was located on the west side of Bab Dekkakin. Although the gardens and the water wheel have since disappeared, traces of the former aqueduct are visible in the western wall of the New Mechouar today and also in the large octagonal towers of Bab Segma, one of the former gates to the garden.[18][19]