Which of the following is a common term for the vertical piping system in plumbing that carries waste?

The term "Soil Stack" specifically refers to the vertical piping system in plumbing that carries waste, primarily human waste, from various plumbing fixtures to the sewer or septic system. It is an essential component of the building's drainage system and is designed to accommodate the discharge of wastewater and solids, effectively managing the flow and ensuring that waste is transported away from the property safely.

The other terms, while related to plumbing systems, do not uniquely define the vertical transport of waste. For instance, "Drain" can refer broadly to any system or pipe that carries off water or liquid waste from a fixture. "Vertical Waste Pipe" is a more general term that could describe any vertical pipe carrying waste, but it doesn't carry the specific connotation of human waste that "Soil Stack" does. "Drainage Pipe" also refers broadly to pipes used for drainage but lacks the specific implication of being part of a system designed specifically for waste.

Understanding these distinctions is crucial for plumbing professionals, as it helps in effectively communicating about plumbing systems and adhering to the codes governing them.