Abstract: A system for connecting a reservoir and a container comprising, at the container level, a container opening; container closing means; and container locking means arranged to lock the container closing means in the closed position and comprising, at the reservoir level, a reservoir opening; reservoir closing means; actuation means arranged to actuate the container locking means when the container is connected to the reservoir to release the container closing means; and reservoir locking means arranged to lock said actuation means and arranged to be actuated by additional actuation means to release said actuation means connected to the reservoir, the reservoir locking means and/or said actuation means being arranged to lock the reservoir closing means in a closed position.