DavidTu
Member
The waste stack in my remodel had to be positioned such that above the floor-level of the 2nd floor (2-story single family home) the stack's vent cannot continue straight upwards but must go horiztonal around 3-4ft before continuing upwards. There are two bathrooms on the 2nd floor. I am aware of the restrictions for horizontal offsets of vents to be 6" above the flood level rim of all fixtures serviced by them.
However, I have two questions: 1) First, does that restriction even apply to the main stack vent (as opposed to fixture trap-arm vents? and 2) the UPC says that the restriction can be waived if there is essentially no choice in the matter due to the building's construction (which I believe is the case here)--I'm in Seattle, how will I fare w/ inspector on this one?
Helpful Plumbing Hints for Residential Construction by Bert Polk Plumbing Inspector Lincoln County
However, I have two questions: 1) First, does that restriction even apply to the main stack vent (as opposed to fixture trap-arm vents? and 2) the UPC says that the restriction can be waived if there is essentially no choice in the matter due to the building's construction (which I believe is the case here)--I'm in Seattle, how will I fare w/ inspector on this one?
Helpful Plumbing Hints for Residential Construction by Bert Polk Plumbing Inspector Lincoln County
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