Due to their design features and pumping characteristics, mono pumps are ideally suited for use in water supply and also in the water disposal of municipalities and industrial companies. In water supply, they are used in reverse osmosis systems, among other things, to press water through the membranes in a defined manner. In wastewater technology, the main areas of application are sludges containing solids of varying viscosity and the dosing of chemicals, e.g. deflocculants.