What does the term "fixture" refer to in plumbing?

In plumbing, the term "fixture" specifically refers to a device that introduces water into a plumbing system, making it an essential component for the distribution of water. Common examples of fixtures include sinks, toilets, showers, and bathtubs. These fixtures are designed to connect to a plumbing system and facilitate the flow of water for various domestic or commercial purposes.

While some fixtures may also have the ability to carry wastewater away, their primary function is to provide a point of water delivery into the system. This distinction is important, as it identifies fixtures as devices that interact directly with users for the purposes of consumption, hygiene, or other water-related activities, and highlights their role in the overall plumbing infrastructure.

The other options refer to different plumbing concepts: a device that carries wastewater away pertains to drains and sewer systems, plumbing materials may include pipes and fittings, and leak detection methods are tools or technologies utilized to identify leaks in a plumbing system. Understanding the specific role of fixtures is key to grasping the broader workings of plumbing systems.