Dostoy320
New Member
If I have a run of 3' from the tub drain to the main stack, I can wet vent that with a 1 1/2" pipe, correct? Am I reading the code chart correctly?
edit: Turns out the distances are really close to code limits. Where does one measure for the 3' 6" critical distance? Start at the cast iron stack's hub flange, or center of the stack or what? Measure all the way to the tub drain or one side or the other of the P trap or what?
From the flange on the side of the stack to the tub's actual drain is about 6' 7".
Thanks,
adam
edit: Turns out the distances are really close to code limits. Where does one measure for the 3' 6" critical distance? Start at the cast iron stack's hub flange, or center of the stack or what? Measure all the way to the tub drain or one side or the other of the P trap or what?
From the flange on the side of the stack to the tub's actual drain is about 6' 7".
Thanks,
adam
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