Minnesota Administrative Rules

4715.0920 TRAP PROTECTION.

All fixture traps, except as otherwise provided in this code, shall be protected against siphonage and back pressure by means of a properly installed vent pipe. The vent shall be so located that the developed length from the fixture trap to the vent shall not exceed the distance given in part 4715.2620, subpart 4.

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. The trap arm direction may be changed by the use of not more than two 45 degrees or one 90 degrees long turn elbows.

Statutory Authority:

MS s 326.37 to 326.45; 326B.43 to 326B.49

History:

L 2007 c 140 art 6 s 15; art 13 s 4

Published Electronically:

May 14, 2012