Originally Posted by
Patrick Martinez
not true in the sense of all fittings are created equal...Vent fittings do not have the grade or sweep of drainage fittings as these are only to permit air flow. The graded back to drain issue is to prevent any pooling. I'm not trying to confuse the issue but vent fittings can tee into a stack vent, so again, I was asking clarification if this is a vent or drain.
Paul,
Vent fittings are required to be installed in the direction of the flow (the air flow), and are required to have direction.
Show me some code which states vent fittings are not required to be the same.
From the 2006 IRC.
- P3104.2 Grade. Vent and branch vent pipes shall be graded, connected and supported to allow moisture and condensate to drain back to the soil or waste pipe by gravity.
DWV fittings have that grading built in. Pressure fittings do not. DWV fittings are the same fittings as ... DWV fittings. They are called DWV for a reason.