The inherent chemical and corrosion resistance of plastics piping combined with their overall toughness and durability makes for a superior service life for these highly engineered systems. The service history of plastic piping systems has been studied extensively and found to be superior to various traditional non-plastic piping materials across a broad array of installations. (8, 9, 10) These studies reveal a lower failure rate, less leakage and lower maintenance for plastic piping systems in a broad range of demanding applications thus substantiating a service life in excess of 100 years when designed, installed and operated in accordance with industry-established standards.