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Drain stinks? How to get rid of bad odors!
Two iTS employees kneel in front of the sink in the kitchen and look into the base cabinet

Drain stinks? How to get rid of bad odors!

A smelly drain is not only unpleasant, but can also be a literal sign of underlying problems.

It’s a quiet Sunday morning. You are sitting at the kitchen table, relaxing with a cup of tea and enjoying the aroma of fresh bread rolls, when suddenly an unpleasant smell permeates the entire room.

A smelly drain is not only unpleasant, but can also literally be a sign of deeper problems. But don’t worry. With a few simple tricks and tried-and-tested methods, you can solve this problem in your kitchen or bathroom quickly and effectively.

In this blog article, you will find out what causes your drain to stink, which home remedies and products help and how you can prevent future odor problems.

Short & sweet: Drain suddenly stinks - these are the main reasons:

If your drain suddenly stinks, this can have various causes. Considering how often we use sinks, toilets, bathtubs and showers, their drains are exposed to heavy use on a daily basis. In addition to the following three main reasons, we will also explain other causes of smelly drains in the rest of the blog article and introduce you to proven tools that you can use to effectively combat these problems.

  • Kitchen drain stinks
    A smelly drain in the kitchen is mainly caused by deposits such as leftover food or grease, which accumulate in the drain pipe over time and begin to rot there. These materials decompose and the resulting residues produce the nasty, unpleasant smell.

  • Shower drain stinks
    A smelly shower drain is often caused by hair and soap residue getting stuck in the drain pipe. These can cause an unpleasant odor even if the drain is not blocked.

  • Toilet and sink drains stink
    A smelly toilet and sink drain is often caused by biofilms of bacteria and mold. These form on the inside walls of the pipes and cause musty odors, especially if the drain is not cleaned regularly. Hair and soap residue are also often the nasty culprits here, especially if the sink drain stinks.

What can cause the drain to stink but not be blocked?

Perhaps you have already had the experience that the shower drain stinks but is not blocked or that an unpleasant drainage odor is coming from the washbasin or sink, even though the water is draining normally.

The most common problem that causes a drain to smell bad without the pipe being blocked The reason for this is usually a dry siphon. The trap is usually the U-shaped part of the pipe under the sink that is always filled with water and holds back water to prevent sewer gases from entering. If this dries out, foul odors can rise unhindered. Deposits in the pipe that are not strong enough to cause a blockage can also release such odors.

Specific reasons why the shower drain stinks but is not blocked

Particularly during longer vacations or in rarely used bathrooms, such as in guest rooms or vacation apartments, it often happens that the shower drain stinks but is not blocked. Depending on whether it is a shower channel or a shower drain with siphon (cup siphon), this problem can be attributed to a variety of factors.

Below we list the three most common reasons why the shower drain stinks:

  • Deposits of soap residue & hair
    Two of the main reasons are soap residue and hair, which accumulate in the drain pipe and thus provide ideal conditions for bacteria and mold to multiply. If the drain stinks but is not blocked, these microorganisms can be the cause of the persistent odors. With shower channels in particular, this problem can be exacerbated by the larger surface area in which residue can accumulate.

  • Drying siphons
    An equally common reason can be a dry siphon. If the shower has not been used for a long time, the water in the trap(cup trap) evaporates, causing the drain to stink. Particularly in the case of a shower drain, the foul smell from the sewer system can enter the bathroom unhindered without this water barrier and contribute to the formation of odors.

  • Limescale deposits
    The persistent odor from the drain or siphon can also be caused by limescale deposits, which can constrict the drain and lead to blockages. Limescale deposits are caused by hard water and can build up over time, impeding the flow of water and encouraging the formation of deposits and odors.

  • Stifle the germ before it grows
    To avoid these and other problems, remove hair from the drain after every shower and use drain strainers to easily catch larger particles and hair directly.

Effective household remedies for a smelly drain

There is nothing more annoying than a smelly drain that disrupts your everyday life. But before you reach for the chemical mace, why not try some tried and tested household remedies first? Not only are they more environmentally friendly, they are often just as effective as expensive specialist cleaners.

Below we present some tried and tested methods that you can use to effectively banish the nasty smell from the drain. What’s more, these home remedies are easy to use and you usually already have the ingredients you need in your kitchen:

  • Baking soda and vinegar
    A reliable way to clean drains and eliminate odors is to combine baking soda and vinegar. Add 4 tablespoons of baking soda to the drain and immediately pour 100 ml of vinegar (at least 25% concentration) down the drain. It will immediately start to bubble and foam – this is the desired reaction that loosens blockages. Leave the mixture to work for a good 15 minutes and then rinse with plenty of hot water at 60° C .

  • Hot water
    If the drain smells, regular flushing with hot water can often work wonders to loosen grease and other deposits in the drain. Once a week, carefully pour a pot of hot water (never boiling water!) at a maximum temperature of 60° C into the drain from a height of about 1 m.

  • Cola plus hot water
    You might think this is just a viral hack, but cola is actually an effective way of clearing pipe blockages. The phosphoric acid in cola etches away deposits in the pipes, achieving almost the same effect as chemical cleaners. Simply pour 1 liter of cola into the drain and leave it to work overnight. The next day, rinse with water at a maximum temperature of 60° C .

4 preventive tips to stop your drain stinking from now on

To avoid any nasty surprises or smells in the future, you can take a few simple measures to prevent your bathroom or kitchen drain from stinking and stubborn odors from spreading.

Here are four preventative tips to help you keep your drains clean and odor-free:

Tip 1: Constant cleaning

Clean your drains regularly using the methods mentioned above. This prevents the build-up of deposits and reduces the formation of biofilms.

Tip 2: Use sieves

Use drain strainers in the kitchen and bathroom to trap leftover food, hair and other particles. Even this simple aid effectively prevents materials from accumulating in the drain pipe.

Tip 3: Do not pour in any fat or oil

Do not pour grease or oil down the drain, as it can build up and harden on the pipe walls, causing blockages and odors.

Tip 4: Water regularly

Run hot water through your drains regularly, especially if they are rarely used. This keeps the trap filled, the pipes clean and the desired odor barrier intact.

Drain stinks despite cleaning - use a long-term solution instead of DIY

Sometimes the drain continues to stink despite thorough cleaning. This may indicate that there are more complex problems that cannot be easily solved with simple household remedies.

So here we look at some of the most common reasons why a drain stinks, despite being cleaned:

If all of our DIY methods mentioned above fail and the drain continues to stink, we at ITS Kanal Services offer you 24-hour emergency service. professional direct assistance. Our competent specialists are well equipped to solve any problem – be it a smelly sink drain, a blocked sink drain or a deep-seated odor from the shower.

To summarize: What to do about smelly drains?

A smelly drain doesn’t have to affect your home for long. Unpleasant odors from the drain can be eliminated with simple means. Use the home remedies presented and make sure you clean regularly to prevent drain odors in the long term. And if the odors do not disappear despite all your efforts, do not hesitate to seek professional help.

ITS Kanal Services AG offers you a fast and efficient service to solve stubborn odors and underlying problems. Contact us and we will ensure that your drains work perfectly again.

Whether the sink drain stinks, the kitchen sink is heavily blocked, a bad smell is coming from the shower or there are other problems – you can rely on our expertise in sewer, pipe and drain cleaning. We at iTS Kanal Services AG bring freshness back into your rooms

How can we help you today?