ONLINE FLUID GENERATING PERITONEAL DIALYSIS CYCLER

A peritoneal dialysis ("PD") machine includes a water pump; a concentrate pump; a water valve, and an inlet to the water valve positioned to receive purified water; a concentrate valve, and an inlet to the concentrate valve positioned to receive PD fluid concentrate; a mixing line located downstream from the water pump and the a concentrate pump; a conductivity sensor positioned to sense mixed purified water and PD fluid concentrate that form fresh PD fluid; a flexible patient line configured to bring fresh PD fluid to and remove used PD fluid from a patient; and a control unit configured to control the water pump, the concentrate pump, the water valve and the concentrate valve, to receive an output from the conductivity sensor, and to run a disinfection sequence in which (i) the inlet to the concentrate valve alternatively receives disinfectant or (ii) the flexible patient line alternatively receives disinfectant.