P.R. Laws tit. 12, § 802
Any persons may remove in vessels any water they may require for domestic or manufacturing uses, or for the irrigation of isolated plants, from waters which have been artificially diverted from their natural public channels into canals, ditches, or uncovered aqueducts, even though they belong to private grantees; but the water must be taken by hand, without the use of any machinery or apparatus and without interrupting the course of the water, nor injuring the edges of the canal or ditch. The authorities must, nevertheless, limit the use of this right when it causes injury to the grantee of the waters. It is understood that no one may enter private property to search for or use water without the permission of the owner.
History —Law of Waters, art. 127.