Supporting blocks for installation on a base of monobloc pumps. Comprised of several supporting blocks (number dependent on the pump type), intended for the screwed connection with the screw-on bases or feet of the pump/ motor. The supporting blocks ensure secure fastening of the pump to the foundation. Various sets are available for the pump and motor. Furthermore, they equalise the difference in height between the pump and the motor, if the pump housing is bigger than the axle height of the motor or vice-versa. This prevents turbulent running of the pump and possible premature wear of the mechanical seal.