Abstract: The disclosure relates to concentrate pouches for use in peritoneal dialysis. The pouches can contain a solid, liquid, or aqueous solution. Water can be added to the concentrate pouches to facilitate dissolution and mixing of dry powders and/or aqueous concentrates to generate a peritoneal dialysis fluid for use in peritoneal dialysis therapy. The concentrate pouches can include a venturi to assist dissolution of concentrates.

Abstract: A water purification unit (30) fluidly connectable to a peritoneal dialysis preparator (50/60) and a cycler. The purification unit is connectable to a water source (20) and has a pump for flow of fluid from the unit to a purified water reservoir (40), the reservoir being fluidly connectable to the preparator which has a number of solute containers for dissolution of the solutes; each container being fluidly connectable to a chamber for receiving a solution of the solutes for preparation of a peritoneal dialysis fluid and the chamber being fluidly connectable to the cycler for the delivery and drainage of the peritoneal dialysis fluid to and from a patient. Purified water delivery to the reservoir is controlled by a first pressure sensor (72), and a second pressure sensor (74) between the reservoir and preparator provides a pressure differential between the first and second sensors to control a flow generator (76).