What is the function of a hose bib?

The primary function of a hose bib is to provide an external water supply for outdoor use. This fixture allows homeowners to connect hoses to easily access water for various outdoor activities, such as gardening, washing cars, or filling pools. Hose bibs are typically installed at accessible locations around the perimeter of a home, making them ideal for irrigation and maintenance tasks.

While other options pertain to different plumbing functions, they do not accurately describe the specific role of a hose bib. For instance, regulating water pressure is achieved through pressure-reducing valves, and preventing backflow is managed with specific devices designed to maintain water quality and safety. Additionally, drainage outlets serve a different purpose entirely—managing water runoff rather than supplying water. Thus, the focus of the hose bib is solely on providing that convenient outdoor water source.