Sewer odours inside can suggest a dry trap, cracked air vent
https://canvas.pasadena.edu/eportfolios/4924~6653/home/common-plumbing-leaks-that-you-may-experience-in-your-home
Sewer odours inside can suggest a completely dry catch, cracked air vent
Sewer odours inside can suggest a completely dry catch, cracked air vent