Cumque venerit ad moenia, efficiatur castellum et castello coniunctum ad recipiendam aquam triplex inmissarium, conlocenturque in castello tres fistulae aequaliter divisae intra receptacula coniuncta, uti, cum abundaverit ab extremis, in medium receptaculum redundet.
When they come to the city walls, a reservoir is to be made. To this a triple receptacle is to be joined, to receive the water; and three pipes of equal size are to be put in the reservoir, leading to the adjoining receptacles, so that when there is an overflow from the two outer receptacles, it may deliver into the middle receptacle.
final_alignments\Vitruvius_Architecture_Book_8.json