A portable assembly of battery-powered devices intended to be used by, or on a patient, for the controlled introduction of a non-medicated solution (typically water) into the rectum to treat faecal incontinence or constipation (rectal irrigation), and/or for colostomy site irrigation; it is not intended for irrigation of the entire colon. It consists of a reservoir, an electronic pump/control unit, connection tubing, and may include patient contact devices (e.g., rectal or colostomy irrigation nozzle/catheter), and a battery charging device (e.g., mains power lead). It is intended for use in the home and healthcare facility. This is a reusable device.