Abstract: Peritoneal dialysis apparatus includes a holder device (11, 21, 31, 41, 51) for holding a container (10, 20, 30, 40, 50) of a dialysis fluid to be introduced into the peritoneal chamber (14, 24, 34, 44) of a subject; a catheter device (13, 23, 33, 43, 53) insertable through the abdominal wall (14a) of the subject for introducing the dialysis fluid into the peritoneal chamber (14, 24, 34, 44) for draining the dialysis fluid therefrom; and a conduit device (12, 22, 32, 42, 52) fluidly connecting a container (10, 20, 30, 40) held by the holder device (11, 21, 31, 41) to the catheter device (13, 23, 33, 43). The apparatus further includes an agitator (16, 25, 36, 45, 56, 57) cooperable with at least one of the above three devices for agitating the dialysis fluid in the peritoneal chamber (14, 24, 34, 44) in order to enhance the rate of solute removal therefrom.