What causes sewer gas smell in a basement?

The most common cause of sewer gas odors in a basement will be due to your home being equipped with a large basement floor drain. This drain runs deep into your sewer line, and can give off foul sewer gas odors when: There is damage present in the drain line. The drain line is clogged, or needs cleaning.

Is it dangerous to smell sewer gas?

It comprises a mixture of gases, including hydrogen sulfide, ammonia, and more. The hydrogen sulfide in sewer gas is what gives it its signature rotten egg smell. Sewer gas isn’t necessarily toxic at low levels. However, chronic exposure, or higher levels of exposure, can cause symptoms of sewer gas poisoning.

Why does my basement smell like sewer gas?

Areas closer to the ground are more likely to show signs of sewer leaks, but a dark crawl space may also hide puddles and leaks that need tending. When it comes down to identifying the origin of the sewer gas smell in your home, most of your efforts come from trial and error.

What to do if you have sewer gas smell in Your House?

If the smell is coming from a floor drain, pour a pitcher of water down the drain to restore the proper function. Traps dry out when they haven’t been used much, the air in the house is very dry, or there is a leak somewhere before the trap. Check the drains for a clean-out plug.

Can a sewer gas leak smell like rotten eggs?

Did you know: Sewer gas odor and natural gas odor can both remind you of rotten eggs. If you believe your home or office is experiencing a sewer gas leak, it’s important to call a professional immediately. This repair isn’t something that should be put off.

Why do I have gas coming out of my sewer pipe?

Your pipes could be leaking from rust, corrosion, a blockage, or holes along the pipes or pipe joints. Common blockages tend to be caused by tree roots, grease, and items that shouldn’t have been flushed down the drain. The solution your plumber will use depends on the exact cause of the leak or damage to your sewer pipe.

Having a basement that smells like sewage may be due any of several reasons. Here are the most common ones. It is common to find homes afflicted by awful smells in the basement, especially if they contain old sinks or unused tubs. Each drain has traps that prevent sewer gas from slipping away.

How can I get sewer gas out of my basement?

That would allow sewer gas to come up through the drain into the room. Solve that problem just by dumping a pitcherful of water into the drain to restore the trap water. If you follow that up by pouring a couple of tablespoons of cooking oil into the drain, a floating seal of oil will keep the water from evaporating so fast next time.

How to find mysterious sewer or septic smells?

How to find mysterious sewer or septic smells when the source is not obvious. This article suggests things to check when you have had trouble finding the source of a sewer gas, septic gas, or methane smell in or near a building.

How can I find out if I have a sewer gas leak?

Pressure test drain vent system: had a plumber pressure test the drain waste vent piping to find sewer gas leaks Leaky plumbing vent line piping: found sewer gas leaks where plastic pipes had never been properly glued in a wall