How to Get Rid of Smelly Drains at Home?

Why Do Drains Smell?

Before tackling smelly drains, it’s important to figure out what’s causing the issue.

Here are some common culprits:

Build-Up of Organic Matter

Bathroom and kitchen drains can easily clog with food bits, hair, soap scum, or even toothpaste that sticks to the pipe walls. Over time, this gunk decays and leads to a stinky drain in the bathroom or kitchen.

Fats, Oils, and Grease (FOG)

Pouring fats, oils, or grease (FOG) down the sink might seem harmless, but it’s a recipe for trouble. These substances harden in your pipes, trapping food particles and creating nasty smells. Kitchen sinks are especially vulnerable to this type of buildup.

Instead of dumping FOG down the drain, collect it and throw it in the trash to save yourself from future headaches and smelly drains.

Dry Traps (U-Bend or P-Trap)

Your sink’s U-bend or P-trap holds water to block sewer gases from wafting into your home. If a sink hasn’t been used for a while, that water can dry out, letting those gases escape and stink up the place.

When this happens, just run some water through unused drains every now and then to keep the trap filled and the odours out.

Mould and Mildew

Dark, damp pipes are a paradise for mould and mildew, which can grow and give off that musty smell. Cleaning your drains regularly with a mix of baking soda and vinegar can help get rid of it and keep it from coming back.

Keeping your pipes dry and clean is the key to stopping mould and mildew growth that can clog and spread smell from within to get rid of bathroom drain odour.

Blockages

Clogs do more than slow down water. They trap it, creating the perfect environment for smells and even pests like drain flies. Standing water from a blockage can make your drains smell worse over time.

Regularly clearing slow-draining pipes, avoiding dumping waste down the sink, and unblocking sinks can help prevent clogs and the stink that comes with them.

Understanding what’s causing the smell is the first step to getting rid of it and keeping your drains fresh and clean!

Diagnosing the Source of the Smell

Figuring out what’s wrong with your drain is the first step to fixing it. Here’s how to identify what's behind the smelly drains:

• Rotten food smell: It’s probably from old food particles or FOG (fats, oils, grease) building up in your kitchen sink.
• Rotten egg or sewage smell: That’s usually sewer gas sneaking out, maybe because of a dry or damaged P-trap or other plumbing issues that need attention.
• Water not draining or draining super slowly: This usually means there’s a clog due to things like hair, grease, soap scum, or other debris blocking the flow.

Once you know why your drain smells bad, you can tackle the fix yourself or call in a pro to handle it!

How to Freshen Smelly Drains?

Here are some reliable methods to tackle that stinky drain in bathroom or smelly kitchen sink drain:

1. Boiling Water Method

Got a bit of grease buildup in your drain? Boiling water can be a quick and easy fix:

• Start by boiling a kettle or a pan of water. Make sure you’ve got enough to tackle the clog.
• Carefully pour the hot water straight down the drain, nice and slow. This helps break up any grease or debris.
• Wait about five minutes, then run cold water for 30 seconds to flush out the leftovers and cool down the pipes. Done!

2. Baking Soda and Vinegar Method

Got a clogged drain? Baking soda and vinegar are a proven classic home remedy!

• Start by pouring ½ cup of baking soda down the drain. This helps loosen up debris and gets things ready for cleaning.
• Next, slowly add 1 cup of vinegar to the smelly drains. You’ll see it foam up as it works its magic to break down grime and clear any blockages.
• Let the mixture sit for about an hour so it has time to tackle the tough stuff.
• Finally, flush it all out with boiling water, and voilà! Your drain will be clean, fresh, and running smoothly.

3. White Vinegar Method

White vinegar dissolves grime easily and acts as a drain smell remover:

• Pour about half a cup of white vinegar down the drain. This is great for breaking down grime and killing bacteria.
• Let it sit for about 30 minutes so it can do its thing, dissolving buildup and getting rid of odours.
• Once time’s up, flush the drain with hot water to wash away the gunk and leave your sink smelling fresh and clean!

4. Commercial Drain Cleaner Method

Chemical cleaners can be great for tackling tough blockages, but here are a few things to keep in mind:

• Make sure to pick a cleaner that’s safe for your type of pipes to avoid any damage and get the best results.
• Always read the label and follow the instructions carefully. This helps you use it safely, avoid any accidents, and get the best use out of a drain smell remover.
• Don’t overdo it! Using too much can wear down your pipes over time, leading to expensive repairs. Use sparingly for the best outcome.

Checking and Fixing P-Traps and U-Bends

Keeping your P-trap or U-bend in good shape is key to avoiding those nasty sewage-smelling bathrooms. Here's what you can do:

• Check for water: Run the tap and make sure the trap has enough water in it to block any bad odours from creeping in.
• Clear any blockages: Unscrew the U-bend, clean out any gunk with a brush, and reattach it tightly to stop clogs.
• Look for leaks: Check for drips or damp spots around the P-trap. If something’s off, fix it or replace it ASAP to avoid bigger problems.

Simple steps to avoid sewage smell bathrooms and smelly kitchen sink drains! To learn more, read our blog on ‘How to unblock a shower drain’.

Addressing Additional Sources of Drain Smell

Smelly drains aren’t just about the pipes. There are a few other spots you should check, too:

Overflow Pipe

Try pouring some white vinegar or a bit of bleach into the overflow hole. It’s an easy way to tackle the bacteria, odours, and grime that like to hide there.

Grab a small brush and give it a good scrub, especially in those tricky spots. This will help clear out any gunk and keep the overflow hole clean and working properly.

Sink Basin

Fill up your sink with hot, soapy water and let it sit for a few minutes. This softens up the dirt and grime, making it easier to deal with.

Then, take a sponge or brush and give the walls a scrub to get rid of any buildup or odours. Your sink will be sparkling clean and smell fresh in no time!

If the issue is big, get support from a professional plumber.

How To Prevent Smelly Drains?

An ounce of prevention is worth a pound of cure, right? Keep your drains fresh and odour-free with these easy tips:

• Use Drain Screens or Strainers: Pop a screen or strainer on your drains to catch food, hair, and debris. It’s a simple way to prevent clogs and keep everything flowing smoothly.
• Say No to FOG: Never pour fats, oils, or grease (aka FOG) down the drain. Instead, collect them in a container and toss them in the trash to avoid nasty blockages.
• Flush with Hot Water: Once a week, pour some hot water down your drains. It’s a quick and easy way to clear minor buildup and kill bacteria.
• Try Baking Soda: Sprinkle some baking soda into your drains every week to absorb bad smells and keep things fresh and clog-free.
• Don’t Skip Maintenance: Schedule regular cleanings and check-ups with trusted pros like Serviceteam to avoid big plumbing problems.

A little care goes a long way, and your drains will thank you!

Explore our blog, ‘How to Clear a Blocked Drain’, for simple, step-by-step guidance to tackle drainage issues at home.

When to Call a Professional?

Leaving smelly drains unattended can lead to more than just a bad smell- it can turn into a much bigger problem. If your DIY fixes aren’t cutting it, it’s probably time to call in the experts to get your drains back in working order.

That’s where Serviceteam comes in! We offer drain cleaning and pipe repair services across London, along with 24/7 emergency plumbing help when you need it most.

Fresh, Functional Drains Start Today

No one wants smelly drains messing up their home, right? Those nasty odours can come from grease, debris, or bacteria building up over time. But don’t worry. There are plenty of easy DIY tips to keep your drains clean and fresh. Regular cleaning and a little extra care can make a big difference!

And if things get out of hand or you just want some expert help, Serviceteam’s got your back. Our plumbers are pros at keeping drains fresh and odour-free all year long. Don’t let bad smells ruin your vibe. Give us a call today, and we’ll help you sort it out!

FAQs

What causes smelly drains?

Smelly drains are usually caused by trapped food, grease, hair, or soap residue. In London, hard water can worsen the issue by contributing to limescale buildup, which traps odours. Regular cleaning and correct waste disposal help prevent this.

What to do for smelly drains?

Flush your drain with hot water, baking soda, and white vinegar. For persistent smells, use a drain cleaner or descaler especially in London where hard water is common. Keep up regular cleaning to stop smells from returning.

Smelly drains when using the washing machine?

This could be caused by detergent buildup, lint, or poor drainage. Clean the filter, run an empty hot wash with vinegar, and check the waste pipe. If the smell continues, a plumber can help diagnose the issue. Read our blog: 'How do I get rid of the bad smell from my washing machine'.

Can London’s hard water contribute to drain smells, and how do I fix it?

Yes, hard water causes limescale and residue buildup, which traps odours. Use descaling agents, vinegar, or a water softener regularly to break down mineral deposits and keep drains smelling fresh.

When should I call a professional plumber for a smelly drain issue?

If odours persist despite cleaning or if you notice slow drainage, gurgling, or leaks call a London-based plumber. These may indicate deep clogs or damage that need expert equipment to resolve.