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P3105.4 Vertical Leg for Waste Fixture Drains
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A vertical leg (see Figure P3105.4) is permitted within a fixture drain of a waste fixture in accordance with the following criteria:
R 408.30534
FIGURE P3105.4
VERTICAL LEG FIXTURE DRAIN SCHEMATIC
R 408.30534
- Minimum trap diameter shall be in accordance with Table P3201.7 of the code.
- The diameter of section A shall be equal to the diameter of the trap.
- The length of Section A shall not be less than 8 inches (2032 mm) and in accordance with Table P3105.1 of the code.
- The diameter of Section B shall be 1 pipe size larger than the diameter of Section A.
- The length of Section B shall not be more than 36 inches (9144 mm).
- The diameter of section C shall be 1 pipe size larger than the diameter of Section B.
- The total length of Section A and Section C shall not exceed the distance allowed in Table P3105.1 of the code.
- Bends shall be the diameter of the largest connected section.
R 408.30534
VERTICAL LEG FIXTURE DRAIN SCHEMATIC
R 408.30534
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FIGURE N3
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