A container for storing in particular water-endangering liquids has an inner wall and an outer wall spaced therefrom. In the lower area of the container is connected a pipeline forming a lower outlet and which is formed by an inner pipe and an outer pipe surrounding it. At the inner pipe end remote from the container is positioned a shutoff fitting and the outer pipe issues into a protective casing tightly surrounding the shutoff fitting. The gaps between the two walls and between the two pipes, as well as the inner space of the protective casing are monitored for a possible leak. So that when liquid is removed its unintentional escape in the case of damage can be reliably avoided, from the shutoff fitting a further extending pipeline extends outwards in sealed manner through the protective casing. Outside the protective casing, the further extending pipeline contains at least one shutoff device, the shutoff fitting being pretensioned in its closed position and can be brought into the open position counter to the pretension by means of a control device, if at least the shutoff device is opened and no leak is detected in the monitored spaces.