Plumber Red Seal · Question
Slope of horizontal drain (≤ 75 mm dia):
Code minimum slope for small drains.
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Question: Slope of horizontal drain (≤ 75 mm dia):
Answer options: ✅ 1:50 (2%) minimum
- 1:1000
- Flat
- 1:5
Correct answer: 1:50 (2%) minimum
Explanation: Code minimum slope for small drains.
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