Minnesota Administrative Rules

4715.2580 COMMON VENTS.

Subpart 1.

Individual vent as common vent.

An individual vent, installed vertically, may be used as a common vent for not more than two traps serving a single fixture or two traps serving similar fixtures when both fixture drains connect independently with a vertical drain at the same level.

Subp. 2.

Fixtures connected to vertical drain at different levels.

Except for water closets or similar fixtures, a common vent may be used for two fixtures set on same floor level but connecting at different levels in the vertical drain, provided the vertical drain is one pipe diameter larger than the upper fixture drain but in no case smaller than the lower fixture drain, whichever is the larger and that both drains conform to part 4715.2620, subpart 4. No more than two fixture traps shall be vented in this manner.

Statutory Authority:

MS s 16B.59 to 16B.75; 326.37 to 326.45; 326B.101 to 326B.194; 326B.43 to 326B.49

History:

23 SR 686; L 2007 c 140 art 4 s 61; art 6 s 15; art 13 s 4; L 2008 c 337 s 64; 33 SR 2042

Published Electronically:

May 14, 2012