Power to inspect and regulate water-supply.

7. Any canal-officer or any person acting under the general or special order of any such canal-officer, may enter upon any land, building or water-course, in respect of which any water-rate is chargeable, for the purpose of inspecting or regulating the use of the water supplied, or of measuring the land irrigated thereby or chargeable with a water-rate, and of doing all things necessary for the proper regulation and management of the canal from which such water is supplied.