What is one of the uses for copper or copper-alloy pipe in plumbing?

Copper and copper-alloy pipes are widely utilized in plumbing systems due to their excellent properties such as corrosion resistance, malleability, and reliability. One key application of these materials is in above-ground drain, waste, and vent systems.

Copper piping is robust enough to handle the demands of wastewater transport while also providing the necessary strength to withstand environmental factors. The heat resistance of copper makes it effective for venting, as it can manage temperature fluctuations without degrading. This type of piping is particularly favored in both residential and commercial settings where durability and long lifespan are essential.

In contrast, some options suggest limitations of use that are not characteristic of copper piping. For example, copper is not restricted solely to gas lines or irrigation systems and is extensively used across various plumbing functions, including those involving drain, waste, and vent applications.