Drainage piping below sewer level shall be vented in similar manner to that for a gravity system. Building sump vents shall be sized in accordance with parts 4715.2520, subpart 6, and 4715.2440, subpart 6, but in any case not less than 1-1/2 inches. Vents from pneumatic ejectors, flammable waste traps, or similar equipment shall be terminated separately at the open air.
L 2007 c 140 art 6 s 15; art 13 s 4
May 14, 2012
Official Publication of the State of Minnesota
Revisor of Statutes