What part of a plumbing system is referred to as the connection between a fixture's trap and another drain pipe?

The term that accurately describes the connection between a fixture's trap and another drain pipe is known as the Fixture Drain. This component plays a critical role in the plumbing system by ensuring that wastewater flows efficiently from the trap—where any solids or debris are collected—into the main drainage system. The Fixture Drain is designed to carry this wastewater away from the fixture while allowing for air circulation to prevent siphoning, which could allow sewer gases to enter the living space.

The concept is essential within the plumbing code as it ensures proper system function, helping to maintain sanitary conditions by facilitating effective drainage. It highlights the importance of proper design and installation as specified in code regulations to prevent clogs and maintain a safe plumbing system.

While the other terms like Drainage Channel, Outlet Drain, and Trap Connector may refer to aspects of drainage systems, they do not specifically describe the direct connection from the trap of a fixture to the subsequent drain line, which is the defining role of the Fixture Drain. Understanding this distinction is vital for anyone working within plumbing design and installation.