The Villa Romana del Casale received its water supply from two aqueducts.
One entered from the North and fed the piscina or pool of the baths. There are several remaining parts of this aqueduct along the entrance to the villa.
The other aqueduct entered from the East, feeding a reservoir behind the Triclinium. From here the water was led through a passage between the Hall of Orpheus and the Room with Girls in Bikini into the pool of the Peristyle. The water flowing from the pool would them supply the Internal latrine and the fountain the the Atrium, through which it would pass the outside Latrine.