The overflow from a fixture shall be _______.

The overflow from a fixture is mandated by plumbing codes to ensure safety and prevent water damage. Rather than being considered optional, the overflow serves a crucial function in directing excess water away from the fixture in the event of a blockage or malfunction. This safety measure is vital in maintaining the health and integrity of both the fixture and surrounding areas, as it helps to avoid overflows that can lead to flooding or damage.

Specifically, the standards typically classify the overflow as required for many types of fixtures, such as sinks and bathtubs, to help manage water levels effectively. By ensuring that every fixture that could potentially overflow is equipped with this safety feature, plumbing systems can safeguard properties against accidental water release, ensuring compliance with health and building codes. This overall functionality enhances the reliability of plumbing installations, making it essential rather than optional.