« Vitr. 8.6 | Vitr. 8.6 | Vitr. 9.0 | About This Work »
5An aqueduct which is made of lead, should be thus constructed; if there be a proper fall from the spring head to the city, and hills high enough to cause an impediment do not intervene, the low intervals must be brought to a level by means of substructions preserving the fall directed for channel aqueducts, or by means of a circuitous course, provided it be not too much about; but if there be long valleys, let it be laid according to the slope of the hill, and when it arrives at the bottom, let it be carried level by means of a low substruction as great a distance as possible; this is the part called the venter, by the Greeks κοιλία; when it arrives at the opposite acclivity, the water therein being but slightly swelled on account of the length of the venter, it may be directed upwards.
« Vitr. 8.6 | Vitr. 8.6 | Vitr. 9.0 | About This Work »