Why does my basement smell like sewage when it rains?

Why does my basement smell like sewage when it rains?

Raining often causes atmospheric pressure changes, which can lead to the air becoming heavy. As such, the methane gases typically found in the septic tank don’t flow through the vent as they normally would. Instead, they stay low to the ground, causing a foul smell similar to rotten eggs.

Is it normal for a basement to smell like gas?

That “rotten egg” smell in the basement is sewer gas, or hydrogen sulfide. A gas odor can be a sign of a small problem, like a dried out water seal in a floor drain. On a bigger scale, it can also indicate a broken sewer line or vent stack. Ignoring the smell can cause health problems for you and your family.

Why do I have a septic smell in my house?

A septic odor in your home usually means there’s a plumbing problem, but not all issues require calling a plumber. The floor drain trap in your basement could be dried out, allowing septic tank gases to vent back into your house. The plumbing vent on the roof could be clogged or blocked.

Why does my basement smell like sewer gas?

As more oxygen gets removed from the air, you could begin to damage organs in your body, including the heart and brain. Problem: If you are smelling sewer gas from your basement, the most common reason is because of a dried up P-trap in the floor drain, sink drain, shower drain, or toilet.

Why does my house smell like sewer when it rains?

Rainwater will find the lowest point, and if you have a crack in your sewer line, your septic tank could begin to fill up. As the septic fills up with rainwater, it causes the sewer gas to rise and if you have a cracked or broken pipe, it will smell bad near your house.

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.

Why does my basement smell like mildew and mold?

Some of the most common unpleasant odors in the basement are caused by mold, mildew, sewer gases, or a dead decaying animal such as a mouse. Sewer Gas Not only can the smell of sewer gas be repulsive, but it can also be quite dangerous.

What if your basement smells like a sewer?

If you notice a foul sewer smell in your house or basement, here are the five possible causes in order of probability: You have a water trap under a floor drain, laundry tub or wash basin that has dried out from lack of use. Check for a cleanout plug inside the floor drain to get rid of a sewer smell in bathroom or laundry room. It’s less likely, but the water in the toilet trap also could have evaporated.

What are the effects of smelling sewer gas?

Smelling sewer gas at low concentrations is not deadly, but it does cause eye and throat irritation, coughing and trouble breathing. Long-term effects of inhaling low concentrations of hydrogen sulphide gas include fatigue, loss of appetite and headache. Extremely high concentrations of the gas are toxic and sometimes fatal.

Why does basement smell like sewage?

If you notice a foul sewer smell in your house or basement, here are the five possible causes in order of probability: You have a water trap under a floor drain, laundry tub or wash basin that has dried out from lack of use. Water in any trap under unused drains will eventually evaporate.

How do you stop sewer gas smell?

Try baking soda and white vinegar. If you need a quick fix, try pouring baking soda and vinegar down your drain and letting it sit for an hour. This can neutralize odors while you or your plumber works on finding a long-term solution to your sewer gas problem.

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