plumbing, system of pipes and fixtures installed in a building for the distribution and use of potable water and the removal of waterborne wastes. It is usually distinguished from water and sewage systems that serve a group of buildings or a city.

plumbing, system of pipes and fixtures installed in a building for the distribution and use of potable water and the removal of waterborne wastes. It is usually distinguished from water and sewage systems that serve a group of buildings or a city.