How to Get Rid of Smelly Drains?

Have you ever been in the middle of a shower, or washing dishes, and noticed an unpleasant odor creeping up from your drain? This is a common issue many homeowners face, but it’s important to understand that the smell could be more than just an inconvenience. Smelly drains often indicate problems in your drainage system. If you ignore these issues, they could lead to bigger problems later.

Drains are essential in every home, from your bathroom sink to your kitchen, shower, and laundry room. Since they often carry away water, food particles, soap, and grease, it’s no wonder these can cause odors. But what exactly causes your drain to smell bad? Let’s explore some of the most common reasons in detail.

Causes of Smelly Drains in House

get rid of Smelly Drains

1. Build-up of Organic Matter

One of the most common reasons for a smelly drain is a build-up of organic matter. Over time, particles such as food scraps, hair, soap scum, and grease accumulate inside the pipes, especially in kitchens and bathrooms. As this organic material decomposes, it releases gasses that have a foul odor, often resembling rotten eggs.

In kitchen sinks, food particles from dishes can get stuck in the garbage disposal or pipes. This can cause a slow breakdown that creates a strong, bad smell.

In bathroom drains, hair and soap scum can form a sticky residue. This residue sticks to the pipe walls. Over time, it can cause bacteria to grow, leading to bad odors.

2. Blocked Drain Pipes

Blockages are another common cause of smelly drains. When there’s a blockage, water can’t flow freely, causing it to stagnate. This stagnant water can lead to bacteria growth, which in turn creates an odor. A blocked drain can happen for many reasons. Common causes include food waste, grease, soap, hair, and foreign objects that fall in.

Blocked drains can cause bad smells. They can also slow down how water drains. In serious cases, water may back up into your sink, shower, or tub. If you notice a foul odor along with water draining slowly, this could be a clear sign of a blockage in your drain pipe.

3. Dry P-Trap

The P-trap is a u-shaped bend in the pipe located beneath your sink. This plumbing part holds a small amount of water. This water acts as a barrier. It stops bad-smelling sewer gasses from coming up through the pipes and into your home. However, if the P-trap dries out, it can no longer perform this function, allowing odors to escape.

P-traps can dry out if someone does not use them for a long time. Guests often find this happens in bathrooms that they do not use regularly. As a result, sewer gasses can rise, causing a noticeable and unpleasant smell. This is often the case in vacant homes or rarely used bathrooms.

4. Mold and Mildew Growth

Mold and mildew thrive in dark, damp environments, making your drain pipes an ideal breeding ground. The presence of mold inside your pipes not only slows down drainage but also emits a musty smell that can be quite overpowering. As the mold continues to grow, it releases spores into the air, which contributes to the odor.

People often recognize the distinct smell of mold easily. If you think mold is causing your smelly drain, it’s important to deal with it quickly. Mold can cause health problems, especially for people with allergies or breathing issues.

5. Grease Build-up

Many people mistakenly pour grease down the drain, thinking it will wash away with water. However, grease often hardens as it cools.

It sticks to the insides of your pipes. This creates a coating that traps food particles and debris. This causes bacteria to grow and creates a bad smell that can spread through your kitchen.

Grease build-up is a significant issue. It causes bad smells and can lead to serious clogs over time. The hardened grease can constrict water flow, causing drainage issues and making it more difficult to remove the build-up.

6. Garbage Disposal Issues

If you have a garbage disposal, it can be a major source of smelly drains, especially if it isn’t properly cleaned. Food particles often trap themselves in the disposal, and over time, they rot and emit an unpleasant smell. If the disposal blades are not sharp, they may have trouble breaking down food. This can cause more build-up and a stronger odor.

The smell from a garbage disposal gets stronger when you turn it on. The motor stirs up decomposing particles and releases a strong odor into the air. Regular cleaning and maintenance are essential to prevent this issue.

7. Sewer Line Issues

In some cases, smelly drains could indicate a problem with your home’s sewer line. A cracked or damaged sewer line can cause sewage to leak, which produces a strong, unpleasant odor that travels up through your drains. This issue is serious and needs quick help from a professional plumber. It can cause health risks and lead to more damage to your property.

You might notice this problem if you detect a foul odor coming from multiple drains in your home, not just one. Gurgling sounds, slow drainage, or water backing up in multiple fixtures may also accompany the smell.

8. Drain Flies

While not as common, drain flies can also contribute to the odor problem in your drains. These tiny insects attract organic matter and standing water in drains. They lay their eggs inside the pipes, and as the eggs hatch, the larvae feed on the organic material, causing a foul smell. Seeing drain flies means there is organic material building up in your pipes. This needs to be fixed to eliminate the odor.

DIY Tips for Cleaning and Freshening Drains

Don’t wait until your drains are clogged or start to smell before taking action. Follow these simple steps to keep your drains clear and odor-free:

  1. Sprinkle ½ cup of baking soda and ¼ cup of salt directly into the drain.
  2. Slowly pour a large bottle of white vinegar over the mixture.
  3. You’ll notice the mixture foaming and bubbling as it reacts.
  4. Allow it to sit for about 15 minutes to work effectively.
  5. Afterward, rinse the drain with hot (but not boiling) water.
  6. Finally, run cold water to flush everything away.
  7. Before placing plates in the sink, always scrape leftover food into the trash can. This simple step prevents food from clogging your drain. There are many things you shouldn’t put down the drain:
  8. Never pour grease down the drain. Grease can not only clog your pipes but also cause severe damage over time and contaminate the city water system.

If your drain flows smoothly, you’re all set! If not, repeat the process one more time before calling a professional plumber. Doing this every few weeks can help prevent odors and blockages. Also, remember to keep hair out of drains and avoid using harsh chemical cleaners that can damage your plumbing system.

For your garbage disposal, keep it clean and fresh by occasionally grinding some ice and lemon or lime wedges.

Smelly Drains Solutions

Understanding the causes of smelly drains is the first step to effectively addressing the problem. You can fix some problems, like minor build-up or a dry P-trap, with DIY methods. However, other issues may need professional help. This is where Derks Plumbing comes in.

At Derks Plumbing, we offer professional sewer and drain cleaning services. We help remove bad odors and restore proper drainage in your home. Our team of experts knows how to find the cause of the odor. We offer effective solutions to keep your drains fresh and working well.

Derks Plumbing uses advanced methods like hydero-jet drain cleaning to safely remove blockages, grease, mold, and other things that cause smelly drains. Our services will solve the current problem and help stop future odors from coming back.

Don’t let smelly drains disrupt your daily life. Contact Derks Plumbing today for smelly drain solutions in Los Angeles, CA and near by areas call at (323) 284-2410 and quick drain cleaning services. We will make your home smell clean and fresh again.

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Derks Plumbing has been delivering professional plumbing services to the residents of Los Angeles for over 16 years. Our experience and strong reputation have allowed us to grow our business, and we are proud to serve you in 15 nearby areas, including Venice,  Santa Monica, Beverly Hills, and more.

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