Hi,
Simple question: Does the requirement that a horizontal vent run must be 6" above the flood level rim apply to a vent run angled at 45 deg to run around obstructions?
More detailed question:
I'm correcting a remodel (previous owner) of a small 1/2 bath. Of course, I keep peeling the onion and finding more and more challenges. (In retrospect, I should have gutted and redone it, but now I've got to get the job done before my wife kills me.)
The bathroom has a pedestal sink with a chrome (brass?) waste arm that connects into the waste stack through a hubbed cast iron sanitary tee. The end of the waste arm is buried in the tee - I can't see whether it's leaded in or not. (House is from 1938). The waste arm extends too far out of the wall to fit the pedestal sink. Previous owner used flexible plastic bellows p-trap to make it work - it was lame.
From the tee, the vent stack transitions to galvanized and immediately a 45 deg bend, galvanized to another stud bay and then a galvanized 45. The initial bend is just above the waste arm and the upper bend at the rim height of the sink. Below the tee, the cast iron stack passes through the floor and then transitions to abs at a rubber fernco.
Searching the archives suggests that since I've got to muck with the cast iron tee, I should just pull out all of the metal and replace with ABS. Is this the way to go?
Simple question: Does the requirement that a horizontal vent run must be 6" above the flood level rim apply to a vent run angled at 45 deg to run around obstructions?
More detailed question:
I'm correcting a remodel (previous owner) of a small 1/2 bath. Of course, I keep peeling the onion and finding more and more challenges. (In retrospect, I should have gutted and redone it, but now I've got to get the job done before my wife kills me.)
The bathroom has a pedestal sink with a chrome (brass?) waste arm that connects into the waste stack through a hubbed cast iron sanitary tee. The end of the waste arm is buried in the tee - I can't see whether it's leaded in or not. (House is from 1938). The waste arm extends too far out of the wall to fit the pedestal sink. Previous owner used flexible plastic bellows p-trap to make it work - it was lame.
From the tee, the vent stack transitions to galvanized and immediately a 45 deg bend, galvanized to another stud bay and then a galvanized 45. The initial bend is just above the waste arm and the upper bend at the rim height of the sink. Below the tee, the cast iron stack passes through the floor and then transitions to abs at a rubber fernco.
Searching the archives suggests that since I've got to muck with the cast iron tee, I should just pull out all of the metal and replace with ABS. Is this the way to go?