Toilet flushing system comprising a body-signal receiving device, a PCB control device and an air pump for inflating an airbag for activating the water outlet valve, wherein the body-signal receiving device has a communications connection to the PCB control device, and wherein the PCB control device has a control connection to the aforementioned air pump, characterized in that the toilet flushing system comprises combined manual and sensor-based actuation, wherein a manual inflation mechanism for inflating the airbag for activating the water outlet valve is provided, wherein the manual inflation mechanism comprises a pushbutton and a restoring device, wherein the pushbutton is movably mounted on a mounting, wherein the restoring device is clamped in between the pushbutton and the mounting, wherein a magnet and a Hall sensor are included, wherein the magnet and the pushbutton move synchronously, wherein the Hall sensor is connected to the mounting, wherein the Hall sensor has a communications connection to the PCB control device, wherein, for manual flushing, the pushbutton is pressed down, wherein the manual inflation mechanism effects inflation of the airbag for activating the water outlet valve in order to provide the manual flushing, wherein the magnet moves together with the pushbutton in such a way that a significant change in the magnetic field in the surroundings of the Hall sensor is effected, wherein the Hall sensor transmits the signal relating to the significant change in the magnetic field to the PCB control device, wherein the PCB control device identifies the manual flushing and the air pump is not activated, wherein, for sensor-based flushing, the body-signal receiving device receives a body signal and the position of the magnet remains unchanged, so that there is no significant change in the magnetic field in the surroundings of the Hall sensor, wherein the Hall sensor transmits the signal relating to the significant change in the magnetic field, which has not taken place, to the PCB control device, and wherein the PCB control device identifies the sensor-based flushing and the air pump is activated to carry out the sensor-based flushing. comprising a body-signal receiving device, a PCB control device and an air pump for inflating an airbag for activating the water outlet valve, wherein the body-signal receiving device has a communications connection to the PCB control device, and wherein the PCB control device has a control connection to the aforementioned air pump, characterized in that the toilet flushing system comprises combined manual and sensor-based actuation, wherein a manual inflation mechanism for inflating the airbag for activating the water outlet valve is provided, wherein the manual inflation mechanism comprises a pushbutton and a restoring device, wherein the pushbutton is movably mounted on a mounting, wherein the restoring device is clamped in between the pushbutton and the mounting, wherein a magnet and a Hall sensor are included, wherein the magnet and the pushbutton move synchronously, wherein the Hall sensor is connected to the mounting, wherein the Hall sensor has a communications connection to the PCB control device, wherein, for manual flushing, the pushbutton is pressed down, wherein the manual inflation mechanism effects inflation of the airbag for activating the water outlet valve in order to provide the manual flushing, wherein the magnet moves together with the pushbutton in such a way that a significant change in the magnetic field in the surroundings of the Hall sensor is effected, wherein the Hall sensor transmits the signal relating to the significant change in the magnetic field to the PCB control device, wherein the PCB control device identifies the manual flushing and the air pump is not activated, wherein, for sensor-based flushing, the body-signal receiving device receives a body signal and the position of the magnet remains unchanged, so that there is no significant change in the magnetic field in the surroundings of the Hall sensor, wherein the Hall sensor transmits the signal relating to the significant change in the magnetic field, which has not taken place, to the PCB control device, and wherein the PCB control device identifies the sensor-based flushing and the air pump is activated to carry out the sensor-based flushing.