Sewage smell coming from sink, tub and towlet in front bathroom?
I have a home that was built in 2008. It is one story and has two bathrooms. The master bath is fine. However, the front secondary bathroom has a sewage smell coming from it. The water in the tub and sink smell horrible and the towlet even after using the flush tablets smell. There is always a yellow ring above the water that will even accure after cleaning the towlet an hour later. There is only one person that usese that bathroom so it is not used a lot. What is the problem.