A washing apparatus with a sliding door (1) is provided with a collecting and draining device that prevents water dripping from the internal surface (3) of the door (1) from falling to the ground. This collecting and draining device comprises a collection tank (2) located below the internal surface (3) of the door (1), a drain mechanism (7, 9) which causes the drainage of water from the collection tank (2) when the door (1) is closed and does not cause the drainage of water when the door (1) is open, elastic means (11) biasing the drain mechanism to take said second configuration and activation means (12) capable to overcome the action of said elastic means (11) so as to force the drain mechanism to take said first configuration.
