It shall be the duty of the superintendent of every such ditch, conduit or reservoir to measure the water therefrom through the outlets to those entitled thereto, and in time of scarcity to apportion the waters flowing in such ditch or conduit, or collected in such reservoir, among those entitled thereto, ratably, and according to the amounts to which they are severally entitled. Where any such ditch, conduit or reservoir hath, subsequent to the original construction, been enlarged, the water diverted, collected, conveyed or stored by means of such enlargement shall be distributed and apportioned in like manner. The several consumers of water under any lateral may at any time, by a vote of a majority thereof, appoint a superintendent to such lateral, who shall be charged with the distribution of the water allotted thereto by the superintendent of the ditch, among those entitled to the use of water from such lateral. A meeting may at any time be called by not less than two of the consumers under such lateral, by notice in writing, specifying the time, place and purpose thereof, for electing such superintendent, or removing him and appointing another. Such superintendent shall hold his office during the pleasure of the consumers of water from such lateral, or a majority of them, and shall receive only such salary or compensation as they may appoint.