AQUARII, were slaves who carried water for bathing, &c. into the female apartments: they were also called aquarioli, and were held in great contempt (Juv. vi.332; Festus, s.v. and Müller's Note; Hieron. Ep. 27; Jul. Paul. iii.7). Becker imagines that the name was also applied to slaves who had the care of the fountains and ponds in gardens (Gallus, vol. i p288). The aquarii were also public officers who attended to the aqueducts under the aediles, and afterwards under the curatores aquarum (Cic. ad Fam. viii.6; Zeno, Cod. Just. xi. tit.42; Aquaeductus.)

William Smith, A Dictionary of Greek and Roman Antiquities (London: John Murray, 1875), 116.