Fully submersible sewage pump for stationary and portable wet well installation for the pumping of sewage not containing faeces and wastewater. Hydraulics housing made from cast iron, plastic impeller and motor housing made from stainless steel. Hydraulics with vertical pressure connection as threaded connection and vortex impeller. Surface-cooled alternating current motor with integrated operating capacitor, and self-switching thermal motor monitoring. Connection cable with fitted shock-proof plug and float switch for automatic level control. The seal is created on the fluid side by a mechanical seal, and on the motor side by a rotary shaft seal.