The system for storing and applying flush solutions, preferably in the medical field such as for general and endoscopic operations, with a flush solution bag that is arranged in a rigid container, is characterized in that the rigid container has a swiveling lid with a connector receptacle, through which a bag connector is stuck, that can be mounted to the bag connector by means of a movable connector locking device and a holding slot arrangement, in that running through the bag connector is a filling line that is provided with a link connector that can be connected to a link connector of the mixing unit, in that the link connector of the mixing unit is covered by a swiveling concentrate flap in its closed state in such a manner that a tight flushing area is formed around the link connector, and in that a flush fluid line discharges into the link connector of the mixing unit in such a way that flushing fluid that can completely clean the link connector on the inside and outside can be conveyed into the flushing area.
