A washing machine comprising: - a housing forming a front opening delimited by a front annular edge, - a washing tub adapted to contain a washing liquid, arranged in the housing and forming a fore opening delimited by a fore annular edge, - an annular elastomeric seal, extending about the front opening and about the fore opening and fixed to the fore and front edges, - a door which is constrained to the housing and movable from an open position to a closed position, wherein an inner surface of the door engages the annular seal, - a laundry drum supported inside the washing tub and forming a drum opening at the fore opening of the washing tub, - a detergent container adapted to contain a detergent, - a first supply valve which is connectable to the water supply system and a first supply duct which connects the first supply valve in flow communication to the detergent container, so as to supply mains water to the detergent container, - a fall duct which connects the detergent container to an intake passage extending through the annular seal, between the front edge and the fore edge, so as to convey a mixture of said mains water and said detergent from the detergent container, through the intake passage, directly into the laundry drum, wherein the fall duct forms an auxiliary opening forming an overflow wall for an overflow of liquid bypassing the intake passage in the event of a blockage in the fall duct, characterized in that the auxiliary opening and the overflow wall are positioned at a receiving opening in a wall of the washing tank and the auxiliary opening is connected to said receiving opening, and in that the fall duct forms a deviation portion which achieves a transverse deviation of the flow trajectory in a tangent direction with respect to the annular seal, thereby realizing a double deviation of said flow trajectory, and in that the auxiliary opening with the overflow wall is formed in an upper part of the deviation portion, while a lower part of the deviation portion forms an accumulation space. - a housing forming a front opening delimited by a front annular edge, - a washing tub adapted to contain a washing liquid, arranged in the housing and forming a fore opening delimited by a fore annular edge, - an annular elastomeric seal, extending about the front opening and about the fore opening and fixed to the fore and front edges, - a door which is constrained to the housing and movable from an open position to a closed position, wherein an inner surface of the door engages the annular seal, - a laundry drum supported inside the washing tub and forming a drum opening at the fore opening of the washing tub, - a detergent container adapted to contain a detergent, - a first supply valve which is connectable to the water supply system and a first supply duct which connects the first supply valve in flow communication to the detergent container, so as to supply mains water to the detergent container, - a fall duct which connects the detergent container to an intake passage extending through the annular seal, between the front edge and the fore edge, so as to convey a mixture of said mains water and said detergent from the detergent container, through the intake passage, directly into the laundry drum, wherein the fall duct forms an auxiliary opening forming an overflow wall for an overflow of liquid bypassing the intake passage in the event of a blockage in the fall duct, characterized in that the auxiliary opening and the overflow wall are positioned at a receiving opening in a wall of the washing tank and the auxiliary opening is connected to said receiving opening, and in that the fall duct forms a deviation portion which achieves a transverse deviation of the flow trajectory in a tangent direction with respect to the annular seal, thereby realizing a double deviation of said flow trajectory, and in that the auxiliary opening with the overflow wall is formed in an upper part of the deviation portion, while a lower part of the deviation portion forms an accumulation space.