In plumbing, what does the term 'drainage system' refer to?

The term 'drainage system' specifically refers to a system designed to remove wastewater and surface water from a building or area. This system is crucial for maintaining hygiene and environmental health by preventing the accumulation of waste and ensuring proper disposal. It typically includes components such as drain pipes, traps, manholes, and vents, all working in conjunction to facilitate the flow and removal of used water and waste materials.

In contrast, a system for supplying water pertains to the water supply infrastructure that brings fresh water to buildings, which is not the focus of a drainage system. Similarly, methods of water heating and means of distributing hot water relate to different aspects of plumbing, specifically around thermally managing water rather than its drainage. Understanding the purpose and function of each plumbing system is vital for ensuring proper installation, operation, and maintenance.