doesn't matter.nelsonba said:.... 1) ... shower drain ...above or below the toilet drain?
...
technically, i think it must be 42" (or at least 6" above the sink rim) although it is true that the shower would show a problem first before the vent got used by sink waste water if the last part of their common drain got blocked.nelsonba said:2) Does the shower vent horizontal run have to be 42" above the floor or just 6" above the trap wier? ....
nelsonba said:A few more questions...
2) Does the shower vent horizontal run have to be 42" above the floor or just 6" above the trap wier?
Thanks
4715.2540 VENT GRADES AND CONNECTIONS.
Subpart 1. Vent grade. All vent and branch vent pipes
shall be so graded and connected as to drain back to a soil or
waste pipe by gravity.
Subp. 2. Vertical rise. Where vent pipes connect to a
horizontal soil or waste pipe, the vent shall be taken off above
the center line of the pipe. The vent pipe shall rise
vertically, or at an angle not more than 45 degrees from the
vertical, to a point at least six inches above flood-level rim
of the fixture it is venting, before offsetting horizontally or
before connecting to the branch vent.
Subp. 3. Height above fixtures. A connection between a
vent pipe and a vent stack or stack-vent shall be made at least
six inches above the flood-level rim of the highest fixture
served by the vent. Horizontal vent pipes forming branch vents,
relief vents, or loop vents shall be at least six inches above
the flood-level rim of the highest fixture served.
STAT AUTH: MS s 326.37 to 326.45
Current as of 07/31/07
This is awkward, but...
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