It’s pretty easy to recognize the horrible odor sewer gas gives off.  If its leaking into your home, you will know how unpleasant it is.  Is the bad smell the only thing you should be worried about with sewer leaks though? Is it dangerous?  Leaking sewer gas can become very hazardous.  Some of the dangers that exist are: risk of explosion or fire, hydrogen sulfide poisoning, which could possibly be lethal and risk of asphyxiation from sewer gases displacing oxygen.

So, as you can see, there are some potentially lethal dangers associated with sewer gas leaking into a home.  With that in mind, its good to think about what causes sewer gas to leak into a home.  Here are some of the causes:

  • A common cause is plumbing fixtures and plumbing traps drying out.  A lack of water barrier in a dried out plumbing trap means that there is nothing to prevent sewer gases leaking back into the house.  Bathrooms and toilets etc. can become dried out if they are not in use very often or during periods of dry weather
  • Wind and air flowing around the building
  • Cracks in foundations, ventilation pipes and plumbing drains
  • Plumbing vents which have been placed too close to air intakes

While this is just a short list, it shows the various ways sewer gas can leak into a home and the potential they have for creating a hazardous living environment.  Its always best to have a professional check your home if you are smelling sewer gas in your house.