An irrigation system is disclosed that can be uses in, for example, rectal irrigation. The system comprises a reservoir for an irrigating liquid and a probe for arrangement in a user. The probe includes an inflatable balloon for fixing the catheter in a body cavity. A first pump is provided to pump irrigation liquid from the reservoir to the probe, and a second pump is provided to pump a fluid to the balloon for inflation. A control unit controls the transfer of the irrigation liquid and the fluid, and includes a valve for releasing fluid from the balloon for deflation. Tubing provides fluid communication between the reservoir, control unit and probe. The control unit and the first and second pumps are further arranged as an integrated unitary component, and the manually operable balloon control element is arranged in the vicinity of the second pump.