[SCAEUOLA libro singulari ὅρων. ] §43.20.8.prCui per fundum iter aquae debetur, quacumque uult in eo riuum licet faciat, dum ne aquae ductum interuerteret.
Anyone to whom a right of watercourse through a tract of land is owed is permitted to construct a channel wherever he wishes on it, provided that he does not disrupt the flow of water.