A method and an apparatus are disclosed for measuring of fluid flow in a fluid distribution system, including a centrally located fluid source which is connected via separate feeding conduits to a number of fluid tap units, each including at least one fluid tap. The method comprises the steps of providing, for each said separate feeding conduit, a first fluid pressure sensor located anywhere along the separate feeding conduit or in the associated fluid tap unit, and a second fluid pressure sensor, serving as a reference pressure sensor common to all of the feeding conduits and being located adjacent to the centrally located fluid source. Each of the first and second fluid pressure sensors are connected to a control unit.