Why does my laundry room smell like sewage and how can I fix it? (2023)

You probably spend a lot of time in the laundry. Sometimes doing laundry feels like a never-ending battle, and you'll always have more laundry to do. When your laundry room starts to stink, it becomes much more difficult to perform your daily tasks.And youIf you've noticed that the room has started to smell a bit like sewage, you probably have a problem on your hands that needs to be addressed immediately.

Many people have their laundry room located in the basement of the house. Areas like this often have problems with sewer overflows and this may be something you will have to deal with. Even laundry rooms located in other parts of your home can have problems. If you want to fix things right nowyou need to be able to determine the cause of your problems.

In this article, I will explain why laundromats have these problems. I will also discuss how you can fix things.As long as you pay attention to all the information, you should be able to fix things without any problem.Read on to delve into all the details.


(Video) How to get rid of the sewer smell in your Laundry Room

Important Notes on the Hazards of Waste Gases

Sewer gas most of the timesmells like rotten eggs or moldy cheese. If you're smelling sewage in your home, there are some important safety concerns to be aware of.

Wastewater gases are highly toxic and can be harmful to everyone in your home.. Breathing these vapors has the potential to make you sick. This is not something that should simply be ignored and could even pose a serious threat to your home. These gases also contain methane and this is highly flammable.

Your laundry area and your entire home are at a higher risk of catching fire when you have sewer gas problems.. For that reason, you'll want to do what you can to resolve this issue before it gets worse.

4 common causes of bad smell in a laundry

Why does my laundry room smell like sewage and how can I fix it? (1)

There are many ways to solve the sewer problem. I am going to go over four possible causes and fixing these problems should also help you get rid of the sewer gas problem.

1. Problems with the water trap

One of the most common causes of a sewer smell in a laundry room is having a dry trap.You may not know it, but there is a water trap located somewhere under the floor drain. It may also be located under the sink or in some type of laundry tub. If this water trap has dried out from not being used, it will not work normally.

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Even your washing machine drain pipe has a trap that prevents sewer gases from passing through the drain opening. These traps must always be filled with water.when you wearDo not use your washing machine for a long time, the water will disappear.It will eventually evaporate and since you are not replenishing it, it will stop doing its job.

When the sewer trap runs dry, it can create some real problems for you.luckily youYou may be able to solve this problem simply by putting the water where it needs to be.You can take a bucket of water and pour it into the trap where it should be. You should also check for leaks to make sure a leak is not the reason the trap is not getting enough water.

If there is any type of leak, the siphon may need to be repaired or replaced.Under most circumstances, a dry trap will result from not using the washing machine for a long time. Just go through things and add water to get things back where they belong. If this was the issue that caused your sewer odors, you should be able to fix things and be back to normal in no time.

2. Ventilation problems

Ventilation problems are another common problem that causes bad odors in your laundry room.If your home's drainage system is not properly vented, sewer gases may become a problem.. These vapors have a very noticeable odor and you'll want to fix things before they get worse. Your vent pipes connect to the main sewer lines in your home and you don't want things to get clogged or it could cause problems in other areas of your home as well.

The most common problem that leads to ventilation problems is a clog.When there is a blockage, the gases cannot go up the ventilation tubes correctly. In a normal situation, gases should rise through the vent tube and then be released into the air through the opening in the roof. You should be able to see any clogs by looking down the pipe with a light to check things carefully.

If there is a blockage, you may choose to call professionals.You may not have the proper equipment to deal with drain clogs. A plumber may even discover that there is a fault in the vent pipe configuration or that other changes need to be made. Just remember to check this when you're trying to determine what's wrong with your clothes.

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3. Blockages in the drain line

Drain line clogs are another common culprit when it comes to laundry sewer odors. Your washing machine's drain line can become clogged over time. This can lead to odors that are very similar to sewer gas.not your drainIt doesn't even have to be completely clogged for these odors to become a problem.

Partial clogs can smell very bad due to bacteria buildup in the drain tube.. Things like clogged hair and soap will end up smelling heavily of sewer gas. As long as the water runs through the pipe, these odors will be released into the air. The best thing to do in this situation is to clear the clog and then clean everything up.

Clearing a drain line clog involves using some type of snake. You can call plumbers to do this job if you don't have the right equipment to handle it. it's also a good ideapour bleach down the drain to get rid of bacteria that grew there. As long as you take these precautions, everything will work out for you.

4. Broken or cracked sewer lines

The most serious problem that could be causing the sewer smell in your laundry room is a broken or cracked sewer pipe..This is going to be a big problem and could end up turning into a big disaster. This is not the most common reason for a sewer smell in the laundry room, but it is something to consider if the above causes are not to blame. This isn't something you can probably fix yourself, so you'll want to call in professionals to have things checked out.

You may not even be able to detect the leak without having the proper equipment.That's why some people spend long periods with the smell of sewage present in their laundry room. They can't determine the problem, so they end up ignoring it for a while. This is not a good idea, as sewer gases and odors are very dangerous for you.

If you can't figure out what's wrong with your laundry room, take the time to call your local plumbers.They will be more than happy to assess the situation and have the right tools to get the job done. You can solve your sewer problem quickly if you go this route. Don't wait to take care of things when it comes to something potentially dangerous like sewer fumes.

(Video) Does it Smell Like Sewer In Your Home? Try This First!

Space requirements for washers and dryers» Read more «

Eliminates the smell of clothes

Now that you know more about why your laundry room may encounter sewer odors, it will be easier to take action. You don't want to have to deal with problems like this on your own if you don't have the right team to fix things. Some of these solutions will be as simple as adding water to a drain trap. If you need to clear some clogs in your pipes, thenyou may need to call a plumber.

If you have some experience with using a drain snake, you may be able to handle things on your own.It really just depends on what kind of tools you have and how comfortable you are using them. In either case, you need to take care of these sewer gas problems as soon as possible. The unpleasant odor is a nuisance, but it can also be a hazard to your home.

Take the time to review things carefully so that you can move forward with confidence. Your laundry room will smell so much better once you're done.


Why does my laundry room smell like sewage and how can I fix it? ›

If your house has a sewage smell when you're doing laundry, chances are your washing machine is incorrectly installed. Sometimes the flexible drain hose is pushed too far into the wastewater drain and bypasses the P-trap. Pulling the hose out far enough for it to avoid bypassing the trap will fix this issue.

How do I get rid of sewer gas smell in my laundry room? ›

The solution is cleaning your laundry room pipe with a drain snake. It will not only clear any debris from your drains but also leave them clean. We advise calling a plumber to do the work if you're inexperienced in using a drain snake.

Why is there a sewer smell coming from my laundry room? ›

It's also possible that your sewers are leaking, allowing gas to float up into your laundry room or some other part of your home. If so, it's in your best interests to get this fixed quickly. Sewer water is dangerous and leaks can get worse over time. Everything that touches sewer water needs to sterilized.

What is the solution for sewage smell? ›

Pouring hot water mixed with vinegar and baking soda down your smelly drains is an effective way to get rid of the sewer smell. Leave the mixture for about 10 to 15 minutes before running any water through the pipes.

Will bleach get rid of sewer smell? ›

Pour Some Bleach in It: Bleach, like other disinfectants, kills almost every species of odor-causing bacteria commonly found in drains and sewer lines. So, an easy DIY step to reduce drain odor is to use bleach.

Will sewer gas smell go away? ›

Leaks, cracks, or blockages in the plumbing can cause sewer gas to leak into your home. The best remedy for a minor sewer gas leak is to call a local plumber so they can find and fix the leak. The symptoms of sewer gas exposure are mild and will go away after exposure ends.

Can a clogged drain cause sewer smell? ›

Clogged drains

One of the most common causes of sewage smells is a clogged drain. When your home's wastewater has nowhere to go, the odors will come back up the drain they should be going down.

What chemical neutralizes sewage? ›

Chemicals Used for pH Adjustment of Industrial Wastewater. The most commonly used neutralization chemicals for acid or base neutralization are 93% Sulfuric acid and 50% Sodium hydroxide.

What is the best cleaning solution for sewage? ›

Wash contaminated surfaces and objects with warm, soapy water and disinfect with a bleach and water solution made of no more than 1 cup of bleach per 1 gallon of water. For objects that would be damaged by bleach, use a home or laundry disinfectant. Make sure to read and follow label instructions. Do not use ammonia.

What happens if you smell sewage for too long? ›

The health risks linked to sewer gas exposure include: Hydrogen sulfide poisoning: Hydrogen sulfide smells like rotten eggs, even in low concentrations. Exposure to low levels of hydrogen sulfide can cause eye and respiratory irritation.

What happens if you pour bleach and vinegar down the drain? ›

The mixing of acidic and alkaline materials creates heat and high pressure, as well as releasing chlorine gas. Not only can you cause your pipes to burst, but you can make the air in your entire home toxic to breathe.

Is it safe to breathe through sewer gas? ›

The principal risks and effects associated with exposure are: Hydrogen sulfide poisoning. Exposure to low levels of hydrogen sulfide causes irritation of the eyes and respiratory tract. Other symptoms include nervousness, dizziness, nausea, headache, and drowsiness.

How do you make homemade drain odor eliminator? ›

Step 1: Mix 1/2 cup baking soda with 1/4 cup table salt. Step 2: Pour the mixture down the drain. Step 3: Pour 1 cup heated vinegar down your drain; the concoction is going to foam and bubble. Step 4: Let the solution stand for 15 minutes (longer does not work any better).

How do I test my house for sewer gas? ›

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. This process involves isolating the sewer system by pushing colored smoke through a roof stack and blocking off the drain line with a test ball.

What does a broken sewer line smell like? ›

2. Sewer Gas Odor. Your home should never smell like sewer gas. If you can smell sewage in your home, that's a tell-tale sign that your sewer pipe is damaged.

What are the symptoms of being exposed to sewage? ›

While most exposed people exhibit no symptoms, some experience sore throat, fever, nausea, vomiting, abdominal pain, constipation, and occasionally diarrhea.

Why does my house suddenly have a strong sewer smell? ›

Sources of sewer smell

There are many things that can make your house smell like sewage. But the main source, outside of something major like a gas leak, is the plumbing fixtures inside your home. Another cause could be a septic blockage or even a frozen septic tank.

Can a plumber get rid of sewer smell? ›

Loose connections along the vent pipe or sewer line can also let pungent gases into your home. These will most typically be inside a wall or in the ceiling, so you'll need the help of an experienced plumber to correct this issue.

How do I know if my sewer drain is clogged? ›

Signs of a Clogged Sewer Line
  1. Multiple Fixtures Are Draining Slowly. ...
  2. Gurgling Sounds in Different Drains. ...
  3. Plunging Becomes a Common Chore. ...
  4. Water Backs Up the Sewer Line Cleanout. ...
  5. Your Drains Are Starting to Smell. ...
  6. Your Yard Is a Mess.
Nov 9, 2021

What kills sewage bacteria? ›

Use a hose, sprinkler, or watering can to water over the area. Let the area dry in the sun for a day. Sunlight helps kill bacteria so don't rake the affected area right away as this can slow down the process.

Can vinegar dissolve sewage? ›

Vinegar. Vinegar is both safe and beneficial to pour down your drain. It acts as a natural cleaning solution and can remove blockages and harmful bacteria that cause foul odors.

What is a home remedy for sewage? ›

Baking Soda & Vinegar

Clear the area around your sink and put a 1/2 cup of baking soda down the drain. Follow that with a 1/2 cup of vinegar. Now plug your drain and let it sit for an hour. Then, unplug the drain and pour a pot of boiling water down it.

How do you disinfect laundry sewage? ›

Since clothing may have been contaminated with sewage, it is important to add a disinfectant* to the wash. Use liquid household bleach (sodium hypochlorite), following label directions.

What dissolves sewage sludge? ›

Many sludges are treated using a variety of digestion techniques, the purpose of which is to reduce the amount of organic matter and the number of disease-causing microorganisms present in the solids. The most common treatment options include anaerobic digestion, aerobic digestion, and composting.

What disinfectant spray for sewage? ›

Using a solution of household chlorine bleach, such as Clorox or Purex, spray down the affected area. Let disinfectant remain in place for at least one-half hour. Recommended dosage of chlorine bleach is 1 cup (8 oz.) to 1 1/2 cups (12 oz.) of liquid bleach per 100 gallons of water.

Can sewer gas come up through the toilet? ›

When it gets clogged, the sewer gases can back up into the sinks and the toilet, resulting in your bathroom's sewage smells. You may experience a bubbling sound coming from the toilet or the drain as sewer gas forces its way into the bathroom.

Why do I smell sewer gas from my washing machine? ›

This gas is commonly found in sewers and is caused by bacteria metabolism. If you can smell hydrogen sulfide coming from your washing machine, it is most likely the result of a buildup of mold, grime, mildew, or old soap in the washing machine itself or a component of it, like the door gasket.

Why does my laundry room smell like rotten eggs? ›

Mold and mildew may be the cause of the rotten egg smell coming from your laundry room. As with any place that has high humidity — mold, mildew, and other fungi are more likely to flourish, particularly in darker, damp places.

Why does it smell like sewer when I run my washing machine? ›

Take a look at your sewer vent pipe to see if any leaves, dirt, or debris are clogging the pipe. Clogged vent pipes redirect sewer fumes back into the home via toilets or washing machine pumps. Keep your washing machine door open after every use to cut back on odors caused by mold and mildew.

Why do I think I smell gas in my laundry room? ›

If you open your dryer early in the cycle and smell gas or can smell it on your clothes, that's a sign that your igniter is going bad. This ventilation issue can be caused by a dirty filter or an exhaust system breach.

Why does it smell like something died in my laundry room? ›

As air passes through the screen it carries lint particles that gather in your vent eventually blocking it if left unchecked. Sometimes when a vent becomes obstructed the steam reverts back into water. The combination of heat, water, and lint sitting in your dryer vent create a smell similar to a dead animal.

How do I get the rotten egg smell out of my washing machine? ›

If your washing machine smells like rotten eggs, there could be a couple of different culprits. Most often, the stench comes from mold or mildew caused by a buildup of soap scum, dirt, or even a trapped sock. Fixing the smell is as simple as doing a quick scrub and running a wash with water and distilled vinegar.

What does a dry P-trap smell like? ›

Dry air might just be the cause of that unpleasant rotten egg smell in your home. Especially during winter, a P-trap can dry up and allow sewer gas to enter the home.


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