An irrigation system and an irrigation method are disclosed, useable e.g. for rectal/anal irrigation. The system comprises a reservoir for an irrigating liquid, a probe for arrangement in a user, tubing providing fluid communication between said reservoir and said probe, and an electrical pump for indirectly pumping irrigation liquid from the reservoir to the probe through said tubing, said electrical pump being controllable to assume a plurality of predetermined flow rates. The system further comprises an electrically operable valve operable to continuously control the degree of openness of said tubing between a fully closed state and a fully opened state, and a flow sensor to measure an actual flow rate of the irrigation liquid in the probe. A controller is arranged to obtain a desired flow rate from a user interface, and configured to control the flow rate of the electric pump to one of said plurality of flow rates exceeding the desired flow rate, and to continuously regulate the electrically operable valve based on the measured actual flow rate, thereby limiting the flow rate provided by the electric pump to obtain the desired output flow rate.