A hemodialysis patient with the use of only his left arm wanted to switch to peritoneal dialysis. The Stay. Safe continuous ambulatory peritoneal dialysis (CAPD) system (Fresenius Medical Care, Bad Homburg, Germany) appeared to be a possible solution. The goal was to train the individual to perform CAPD independently. The Stay. Safe dialysis system was chosen because of its single connection. The device uses a technology that inserts a pin into the lumen of the patient's catheter extension set, sealing and protecting the catheter from contamination before it is disconnected from the disk. The system also has an organizer: it holds the control dial that guides the patient in a systematic and linear fashion through the treatment steps from drain to close, making the system easy to learn and use. The patient learned quickly and felt confident about the procedure. He was able to safely perform the treatment independently.