On Nov 1, 2:28 pm, "Toller" wrote:
I was at the boat house where my son rows. They are putting in bathrooms.
One had a vent pipe coming off the toilet and going up to the roof.
The other toilet had a pipe that went up about 4 feet and ended in a vent.
There was a grill on the wall next to it.

Seems to me that will smell pretty bad in a little while. Does it even
meet code?

look up 'air admittance vent'.
T