The application relates to a flushing apparatus which provides wash water to a water closet bowl. The apparatus (A) therefore comprises at least one inner body (1), at least one outer body (2), at least one cover (3), and at least one flow adjuster (4). The flow adjuster comprises at least a first aperture (4a) and second aperture (4b), whereby the first aperture (4a) has a diameter that is greater than the diameter of the second aperture (4b). The flow adjuster (4) can be rotated such that the flush water passes either the first or second aperture. It is thus possible to adjust the flow rate passing the flow adjuster. Preferably, the apparatus also provides a bidet function whereby a bidet end (16) is integrated within the apparatus.