I am installing new fixtures in an old house that had no venting.
The toilet is more than 6ft from the main stack so it requires a vent. The toilet drains towards the front of the bowl across the room and continues for 5ft before a 90 degree turn. Is it possible to vent the toilet behind the tank? Also the 3inch drain needs to cross through a joist to get to the main stack, but I read that you cannot notch more than 1/6th of the joist.
Any guidance would be greatly appreciated.