τὸ ἐγδοχῖον τοῦ ὕδατος καὶ τὰ ἐν τῆι πόλει ὑδραγώγια → the water reservoir and the conduits in the city (or on the acropolis)
-ονpurificador, Δημήτηρ Orph.H.18.12, καθαρμός Orph.A.38.
