Plumber Red Seal · Question
What is the primary difference between a stack vent and a vent stack?
A stack vent is the portion of a main soil or waste stack that extends above the highest fixture connection and terminates outdoors. A vent stack is a dedicated
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Question: What is the primary difference between a stack vent and a vent stack?
Answer options:
- There is no difference; the terms are interchangeable. ✅ A stack vent is the extension of a soil or waste stack; a vent stack is a separate, dedicated vent pipe.
- A stack vent serves only one fixture; a vent stack serves a whole building.
- A vent stack is always wet; a stack vent is always dry.
Correct answer: A stack vent is the extension of a soil or waste stack; a vent stack is a separate, dedicated vent pipe.
Explanation: A stack vent is the portion of a main soil or waste stack that extends above the highest fixture connection and terminates outdoors. A vent stack is a dedicated vertical pipe installed primarily for venting, connecting multiple branch vents and terminating outdoors.
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