you most likely hve a bad seal at the wax ring.You did replace it when you replaced they toilet diden,t you?
Code there doesn't always require a 'P' trap to hold water and thus block sewer gases from backing into the house.
Carcinogenic sewer fumes such as methane,nitrous Oxide and other highly toxic gases
Either you have a blockage present or your vents on your sewer lines have become blocked or you need to install more vents.
i smell gas fumes in 96 Nissan quest
Only if you want to smell the fumes all the time. Code says it should be through the roof or above the edge of the roof.
If you smell fumes, you should get out of the room, car, or house. Opening windows will help get rid of the smell.
The vent terminal is allowing down drafts to enter thus one would have to install a return bend on this pipe to prevent the air from entering but it will allow sewer fumes to escape
A sewer smell coming from your sink could be caused by a dried-out P-trap, a clog in the drain, or a problem with the sewer vent.
Awful.
It is not safe or legal to live in a sewer. Sewers are designed for carrying waste and are full of harmful bacteria, noxious fumes, and other health hazards. There are serious health risks associated with living in a sewer, and it is important to find safe and appropriate living accommodations.
Several potential causes could be contributing to the sewer smell outside your house, such as a blockage in the sewer line, a damaged sewer pipe, or a problem with the sewer vent. It is recommended to contact a professional plumber to inspect and address the issue promptly.
Peas do give off fumes. That's why you can smell them.