Apart from haemodialysis, continuous ambulatory peritoneal dialysis (CAPD) is another effective therapy for end stage renal disease (ESRD). The Achilles heel of CAPD however is peritonitis, which is a major cause of morbidity and mortality in CAPD patients. Advances in connectology, such as the disconnect system, have resulted in reduced rate of peritonitis. The disconnect system which incorporated a Y-connection allow contamination occurring at the time of connection of the system to flush into the drainage bag thereby reducing the size of microorganism innoculum entering the peritoneal cavity. In recent years, the twin bag system where both the infusion and drainage bags are pre-attached to the Y tubing, has resulted in further reduction in peritonitis rate.