A tub includes a receptacle suitable for containing water. The tub also includes a compartment communicating with a discharge orifice of the tub and including an opening emerging in one face of the tub. The tub also includes a communication orifice suitable for the passage of water from the receptacle to the compartment, the compartment housing a water discharge system. A control plate forms a cover in the opening of the compartment and is configured for actuating the opening and closing of the water discharge system, the control plate being flush with the surface of the face of the tub when the discharge system is in the open position.