Claim: Water supply and sanitation in Japan are typically made from ductile iron and service pipes from stainless steel and the change in pipe materials is credited as a major factor in reducing water losses to one of the world's lowest levels.
Evidence: New water distribution pipes are typically made from ductile iron and service pipes from stainless steel. The change in pipe materials is credited as a major factor in reducing water losses to one of the world's lowest levels.