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Removing the bad smell of sewage

bahman karami
Removing the bad smell of sewage

"What is this smell?" You may have just wondered if your bathroom smells like sewage when you walk in. Well, we're here to help you identify and eliminate that odor. If at any stage of the work you find that you cannot follow the steps, you can call the لوله بازکنی شبانه روزی در تهران number.

Why does the bathroom smell like sewage?

Once you detect a sewer gas odor, it's important to quickly identify the cause. Can sewage gas make you sick and poisoned? These gaseous fumes, such as hydrogen sulfide, a gas that smells like rotten eggs and is highly flammable and toxic, can be dangerous to your health.

Symptoms of sewage gas poisoning

Depending on how sensitive you are to these environmental smells, you may experience symptoms such as the following:

  • Headache
  • nausea
  • Shortness of breath
  • Drowsiness
  • heart beat

Reasons for the smell of sewage in the house

So what could be the cause of this unbearable bad smell? You may have one of several problems on your hands. The smell of sewage gas in the bathroom can be caused by the following:

  • Evaporation of water in the P-trap tube
  • Loss of sealing around the toilet bowl in the wax ring or sealant
  • Pipe burst and broken
  • The growth and penetration of tree roots inside the sewer pipe
  • Destroying the sewer pipe
  • Any of these can be the cause of sewage odors in your home.

How to remove the bad smell of sewage at home

When looking for ways to get rid of sewer odors, there are a few options to consider.

Dryness and evaporation of camel water

It's possible that the smell of sewer gas is coming from the guest bathroom, which is rarely used, which causes the water to evaporate and dry out.


Run the water through your sink or drain to properly refill the P-trap and effectively prevent these odors from building up in your home.

Loss of toilet or pipe sealing

When the toilet seal or pipes are broken, or there is no seal around the toilet at all, it means that water, urine and other waste can find its way through the cracks and allow bacteria to grow. . This bacteria then causes the foul odor you have detected. Fortunately, the solution to this is relatively simple and there is no need to drain the well.


Place a bead or line of sealant around the area where the seal has been removed. You will notice that the smell of sewage will no longer reach you.

Accumulation of hair and waste in the bathroom drain pipe

When we shower, we use different products. Body oils, conditioner, shampoo, soap, and depilatory cream along with natural waste materials such as skin and hair cells, continuously enter the bathroom drain pipe. Regular cleaning can help descale pipes and reduce some of these deposits, but eventually they can start to build up and cause problems like clogged bathroom drains and sewage odors. Over time, these materials often accumulate along the P-trap and the vertical pipes that are located below the discharge pipe.

As these materials accumulate, it begins to emit a sewage odor from bacteria and decomposing waste. The bacteria release a sticky substance that allows them to stick to the sides of your pipes and are difficult to remove without specialized products.


Make an all-natural homemade solution using baking soda, boiling water, and white vinegar. Follow the steps below to remove sediment and unclog your bathroom pipes.

Boil between five and 10 liters of water. Allow the water to cool to 150 degrees Fahrenheit, as pouring hot water down the pipe will destroy the sealing of the pipes and fittings and lead to pipe leaks.

After that, pour a cup of white vinegar into the tube.

Immediately after pouring the vinegar, pour half a cup of baking soda into the pipe.

After two hours, pour a gallon of warm water down the drain.

Finally, run a pipe brush through the drain into the pipe to remove any remaining debris.

The ventilation pipe is incorrectly installed or broken

If the walls near your toilet smell of sewage, it could be due to improper installation or a broken vent pipe.

The vent pipe helps regulate the air pressure in your home's plumbing system. Vent pipes also direct odors outside so they don't leak into your home or bathroom. However, sometimes contractors do not install vent pipes properly, which can cause odors to spread into the bathroom or toilet.


A professional plumber can help you solve any problem with your vent pipe. In cases where the installation is poor, an experienced plumber can quickly diagnose the problem and reinstall a new pipe.

Sometimes, a vent pipe develops cracks that allow odors to leak into your home. To find any cracks, a plumber uses a smoke machine to fill the pipe. When smoke starts coming out, they trace it to the source of the leak and repair the pipe.

The smell of sewage from the washing machine

When you notice that your house smells like sewage, the first place you look is probably the bathroom. However, if you can't find the source of the smell, check your washing machine.

The most common cause of washing machine sewage smell is P-trap, clogged drain or clogged ventilation pipes.


1. P-Trap is not installed properly

P-traps aren't just for your bathroom, they're also essential for washing machines. However, unlike many bathroom pipes, modern washing machines have a flexible drain hose. The waste water from the washing machine flows through this flexible hose to the drain box pipe, which is connected to the P-trap.

Since the hose is flexible, it is easy to install it correctly. The hose may be too far into the drain box preventing the P-trap from working. As a result, odors can permeate your home.


To solve this problem, pull the washing machine drain hose out of the drain box. Stop when the hose is approximately 20cm into the pipe, this will allow the P-trap to work properly and prevent sewage gases from leaking into the room.

2. Unclogging the drain pipe of the washing machine

Another common cause of a bad smell in a washing machine is a clogged drain pipe.

Clogging in the drain line causes accumulation of organic matter such as hair and soap. Bacteria build up on the clog and create a sewer-like odor. If left untreated, the clog will grow larger and produce more noticeable odors.


Fortunately, clogged drains have an easy fix. Clear any clogs in the drain line using a spring-loaded opener. If the clog refuses to budge, call a plumber to inspect your drain and washer.

bahman karami
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