[IDEM libro trigensimo primo ad Quintum Mucium. ] §8.3.15.prQuintus Mucius scribit, cum iter aquae uel cottidianae uel aestiuae uel quae interualla longiora habeat per alienum fundum erit, licere fistulam suam uel fictilem uel cuiuslibet generis in riuo ponere, quae aquam latius exprimeret, et quod uellet in riuo facere, licere, dum ne domino praedii aquagium deterius faceret.
[THE SAME, On Quintus Mucius, Book 31] Quintus Mucius writes that when a right of conducting water—whether daily water, or summer water, or water that has longer intervals of use—passes through another person's land, it is permitted to place one's own pipe, whether made of clay or of any other kind, in the channel, to convey the water more widely, and to do in the channel whatever one wishes, provided that one does not make the watercourse worse for the owner of the land.