Easy Ways to Solve a Foul Smelling Drain

smelling drain

It’s a hot day, and you’ve got the windows wide open. You’re sitting there on your couch, enjoying your favourite show or chatting with your partner, when all of a sudden, you smell something foul coming from the sink.

It smells like you’ve backed up sewage or that something is dead and decaying somewhere beneath your feet. What exactly is that smell? How can you fix it when you have little or no experience and without the help of anyone?

However, if you feel you can’t, it’s best to contact the services of a drainage company.

As a homeowner, you have likely experienced a foul-smelling drain. While it can be upsetting, the smell doesn’t always mean that there is something wrong with the pipes and fixtures. There are some easy steps to help you get rid of that awful smell.

It might seem like every possible cause has been considered with every possible solution. Don’t fret! The secret I’m about to let you in is to follow these easy steps.

What Causes a Foul Smelling Drain?

A foul-smelling drain is a sign of bacterial growth in the plumbing system. Bacteria can grow anywhere there is moisture, food, and warmth. The most common cause of a foul-smelling drain is not cleaning the sink or tub after using it. This allows food particles to sit in the drain allowing bacteria to grow. The build-up of organic matter in your pipes can also cause foul odours from your drains. As organic material builds up on your pipes, it creates an environment where bacteria can thrive. Another major cause of foul-smelling drains is a slow-moving water line or low pressure. When water flows slowly through your pipes, it allows more time for bacteria to grow in your drain trap or other areas of the plumbing system. These bacteria grow on your pipes and cause a foul odour when they reach a certain level of population density. This is why you should always try to fix any problem with your plumbing system as soon as possible so that it does not develop into an even bigger issue later on.

How Do I Get Rid of The Smell

There are many causes of a foul odour coming from your drains. It could be as simple as something you’ve cooked for dinner or something more serious like a backed-up sewage line. Either way, the good news is that there are easy ways to solve a foul-smelling drain.

  1. Stop The Drainage

    The first thing you need to do is stop the flow of water in the drain. This will allow you to get a better look at what’s happening down there and give you enough time to figure out how best to proceed with fixing it.

  2. Find The Source Of The Odour

    Once you’ve stopped the flow of water and located where it’s coming from, use a flashlight to see if you can find anything causing the smell. If the smell comes from inside your home or apartment, check under the sink or behind any nearby cabinets or appliances where debris may have accumulated over time due to clogged pipes and sinks overflowing with dirty dishes, trash, or other household items.If the smell is coming from outside, check around your house first before heading outside to investigate further by looking around your yard, driveway, or other areas that may have become filled with debris over time due to clogged pipes.

  3. Use a liquid drain clog remover

    A liquid drain clog remover works by chemically dissolving the fats, oils, and hair built up in your pipes. Pour it into the drain and let it sit for 15 minutes or so before pouring boiling water down the drain to flush away any remaining residue.

  4. Boiling water

    Heat water in a pot on the stove until it boils. Do not pour the boiling water directly into the drain; use a cup or pitcher to transfer the pot to the drain instead. Pour enough hot water down the drain to reach as far as possible into the pipe. Use caution when pouring because hot water can cause burns if splashed on skin or clothing.

  5. Salt and vinegar solution

    Mixing salt and vinegar in equal parts and pouring it down your drain can help clean out any rust or calcium deposits causing the smell. This solution also works well for cleaning out drains with bad smells coming from them because it helps neutralise odours and clean them out.

  6. Snake the drain

    To snake your drain, follow these steps:

    • Turn off all water sources in your home. This will prevent overflow while you are working on the drains.
    • Place a bucket under the drain you want to snake. This will catch any water that may come out while working on it.
    • Use a utility knife or screwdriver to remove any protective caps over the drain opening. If there is no protective cap, skip this step.
    • Insert the metal end of your snake into the drain opening and push it down until you feel resistance inside the pipe (or until you hit bottom).
    • If there are still obstructions in your pipe, continue pushing until they are cleared out or until you reach them with your snake — whichever comes first.
  7. Call a Professional

    Call a plumber if you don’t want to spend time on this project and are worried about the smell. The plumber will snake out your drain and clean it out. Many drainage companies in London can do this professionally.

    This can be expensive, but it is more effective than doing it yourself. The pros have the tools to get into tight spaces and remove the gunk stuck in there.


Blocked drain pipes are unpleasant, to say the least, and they can be a serious source of foul smells if not managed quickly. Fortunately, there are easy ways to quickly unclog your drain and restore it to a functioning state.Hopefully, these steps will solve your drainage issues. If any of the solutions above seem too daunting or would rather hire a professional, I urge you to do so. It’s definitely better to be safe than sorry.

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