What does the term "installed" signify in plumbing contexts?

In plumbing contexts, the term "installed" refers specifically to the act of altering or newly setting up plumbing systems or components. This implies that the plumbing fixtures, pipes, or systems have been placed in their intended position within a building or structure, ensuring they are operational and compliant with code requirements.

Installation usually involves significant work, including connecting pipes, securing fixtures, and ensuring proper fittings for functionality and safety. This term encompasses both new installations and any alterations to existing plumbing systems, reflecting a transformation that allows the plumbing to function efficiently.

The other options do not accurately capture the specific meaning of "installed." Simply being present in a building indicates that something exists but does not convey the active process of setting it up or modifying it for use. Undergoing maintenance refers to the ongoing upkeep needed for plumbing systems, while the concept of being required to be replaced focuses on components that are beyond their useful life, rather than the act of being newly installed or modified.