The invention relates to a flushing module (11) and a method for flushing liquid lines (23, 24), in particular drinking and / or process water lines in buildings, the flushing module having a flushing device (15), the flushing device comprising a flushing device and a control device , with which the flushing device can be controlled and measurement data, in particular temperature and / or volume measurement data, can be processed, the flushing device having a flushing valve and a free outlet downstream of the flushing valve, the flushing device having an energy storage device for supplying the flushing device with electrical energy, wherein the flushing device, the control device and the energy storage device are integrated in a common housing (14) of the flushing device.
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