§
Subpart 1.
Distance of trap from vent.
Each fixture trap shall have a protecting vent so located that the slope and the developed length in the fixture drain from the trap weir to the vent fitting are within the requirements set forth in subpart 4.
§
Subp. 2.
Trap dip.
The vent pipe opening from a soil or waste pipe, except for water closets and similar fixtures, shall not be below the weir of the trap.
See Also
Fixtures Trap Sizes§
Subp. 3.
Crown venting limitation.
No vent shall be installed within two drain pipe diameters of the trap weir.
§
Subp. 4.
Distance of fixture trap from vent.
| Size of Fixture Drain, Inches | Distance Trap to Vent |
| 1-1/4 | 2 ft 6 in |
| 1-1/2 | 3 ft 6 in |
| 2 | 5 feet |
| 3 | 6 feet |
| 4 | 10 feet |
Note: The developed length between the trap of the water closet or similar fixture and its vent shall not exceed four feet.
History:
L 2007 c 140 art 6 s 15; art 13 s 4; 33 SR 2042
