A locking system includes a carrier member at least one locking member extending from the rod. The carrier member is movable between a first locked position in which the locking member engages a locking receptacle to maintain a container cover in a closed position and a second unlocked position in which the locking member disengages from the locking receptacle and the cover is movable between the closed and open position. The locking system includes a blocking member at a second end of the carrier member. The blocking member is movable between a first engaged position in which the rod abuts a portion of the blocking member and maintains the elongate rod in the first locked position and a second disengaged position in which the rod disengages from the blocking member and a biasing unit urges the rod in the second unlocked position.