Why Does My Sewer Smell?
Make sure all your drains are filled with water. When the drain traps dry out they allow sewer gases to flow into the living space. If the traps are filled with water, you may have a cracked, broken, or separated pipe in a wall or underground. If this is case, the best way to pinpoint the problem is to have a smoke test performed. A smoke test is where you fill the piping with smoke. If the piping is broken smoke will escape at the point of the break.