Like natural gas, sewer gas has a sulfuric odour. However, sewer gas generally smells more like rotten eggs and less like a skunk. The problem comes from a backup of sulfides, ammonia, methane, and other inorganic compounds. In low doses (and in most homes), sewer gas is harmless enough—even though it's unpleasant.Nov 10, 2016,
Sewer gas detectors can monitor the presence of combustible gases commonly found in sewer gas. Sewer gas can be harmful and potentially fatal if left unaddressed for too long. Sewer gas detectors are relatively inexpensive and affordable.Oct 14, 2021
Actually, sewer gas is mostly methane which is odorless but it's almost always mixed with other gases, the most common of which is hydrogen sulfide which has a rotten egg smell. Hydrogen sulfide comes from decomposing organic matter. Natural gas, for that matter, is odorless too.
A regular sewer-gas smell is just a bad stink with a definite odor of feces and sometimes a rotten-egg (hydrogen sulfide) smell and/or a moldy mustiness too.
Since there could be several ways sewer gas smells can enter into your house, an odor detection test is a good place to start. The first step in getting rid of your sewer gas problem can be easily accomplished by an odor detection test commonly referred to as a “smoke” test.
If sewer gas is present in your home, the first sign you may notice is the smell of rotten eggs. You may also experience various symptoms of exposure, such as: fatigue. headaches.Sep 20, 2019