Plumbing is any system that conveys fluids for a wide range of applications. Heating and cooling, waste removal, and potable water delivery are among the most common uses for plumbing; however, plumbing is not limited to these applications.Plumbing utilizes pipes, valves, plumbing fixtures, tanks, and other apparatuses to convey fluids. In the developed world plumbing infrastructure is critical for public health and sanitation.