Plumber Red Seal · Question
What is the maximum number of water closets that a 3-inch (75 mm) soil stack can typically serve?
A 3-inch (75 mm) soil stack can typically serve a maximum of 2 water closets. Exceeding this limit can reduce the pipe's capacity to remove waste efficiently an
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Question: What is the maximum number of water closets that a 3-inch (75 mm) soil stack can typically serve?
Answer options:
- 1 ✅ 2
- 4
- 6
Correct answer: 2
Explanation: A 3-inch (75 mm) soil stack can typically serve a maximum of 2 water closets. Exceeding this limit can reduce the pipe's capacity to remove waste efficiently and maintain proper ventilation.
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