<qa>  What is the potential for BCM to enable better management of fluid balance?Optimal fluid management is one of the primary objectives of dialysis treatment, and there is significant concern that peritoneal dialysis PD patients can become progressively fluid-loaded with time on treatment, especially as residual kidney function declines. Body Composition Monitor BCM has the potential to enable better management of fluid balance. The investigators undertake a prospective, randomized, open-label, controlled trial to determine whether availability of longitudinal BCM measures help clinicians maintain stable fluid status over 24 months in 300 peritoneal dialysis patients. 