Sink Blocked With Fat
If you’ve ever faced a slow-draining or completely clogged kitchen sink, chances are fats, oils, and grease (often called “FOG”) are the culprits. Fats may seem harmless when poured down the drain, but over time they can build up, harden and create major blockages that lead to costly repairs.
In this guide, we’ll break down everything you need to know about a sink blocked with fat. We’ll cover what causes the issue, quick DIY fixes and when it’s time to call a professional.
Understanding the Problem
What Is a Fat Blockage?
Fat blockages occur when fats, oils, and grease (FOG) accumulate in your sink pipes. When these substances cool down, they solidify and form a sticky layer on the inner walls of the pipes. Over time, this layer thickens as more fat and other debris, like food particles, cling to it, eventually leading to a blockage.
Why Are Fat Blockages So Common?
- Convenience: Many people find it easier to rinse fats, oils, and grease down the drain than to dispose of them properly.
- Lack of Awareness: Some people may not realise that even a small amount of FOG can cause a buildup over time.
Causes of Fat Build-Up in Your Sink
Several habits can contribute to a sink blockage caused by fat, including:
- Pouring Oil or Grease Down the Drain: Cooking oil, bacon grease, butter, and other fats seem liquid when hot but solidify as they cool, forming a hard coating inside the pipes.
- Scraping Plates into the Sink: Small bits of food, along with any remaining oil or sauce, get washed down the drain and can stick to the grease buildup.
- Dishwashing Detergent: While it helps break down grease, some detergents don’t completely prevent buildup, allowing fats to accumulate over time.
- Soap Scum: Over time, even soap can add to the problem, as the fats in soaps can combine with food grease and other debris.
How To Clear A Sink Blocked With Fat?
If you’ve noticed slow drainage or a mild clog, try these easy and affordable tips before calling in a plumber.
Boiling Water Flush
Pouring boiling water down the drain is one of the simplest ways to loosen fat build-up.
- Instructions: Boil a kettle of water and carefully pour it down the sink in stages.
- Repeat: You may need to repeat this process a few times for severe blockages.
- Warning: Avoid this method if your pipes are made from PVC, as boiling water could damage them.
Baking Soda and Vinegar
This classic household combo can help dissolve fat deposits in your pipes.
- Instructions:
- Pour half a cup of baking soda into the drain.
- Follow it with a cup of vinegar.
- Let the mixture sit for 10–15 minutes, allowing the reaction to loosen the blockage.
- Rinse with hot water to flush away the dislodged fat.
Dish Soap and Hot Water
Dish soap can help break down fats and oils, and when combined with hot water, it can work wonders.
- Instructions:
- Pour a generous amount of grease-fighting dish soap down the drain.
- Follow it with a kettle of hot water.
- Repeat the process a few times if needed.
Plunger
A plunger can help dislodge clogs by creating pressure that breaks up the blockage.
- Instructions:
- Fill the sink with a few inches of water.
- Place the plunger over the drain and pump up and down several times.
- Lift the plunger to see if the water drains. If not, repeat until the blockage clears.
Use a Drain Snake
If the above methods don’t work, a drain snake or plumber’s auger can help break up stubborn fat blockages.
- Instructions:
- Insert the snake into the drain and push it through the clog.
- Rotate the snake to help it latch onto the blockage.
- Pull the snake out to remove the clog and rinse with hot water.
How Professionals Handle Fat Blockages
When you call a professional, they’ll typically use one of the following methods:
- Power Rodding: This involves a motorised drain snake that breaks up and clears out blockages with high-powered rotation.
- Hydro-Jetting: A high-pressure stream of water blasts away fat and other debris in your pipes, thoroughly cleaning the interior and preventing future clogs.
- Pipe Inspection: A plumber may inspect your pipes with a camera to assess the severity of the blockage and check for any underlying issues, such as pipe damage or corrosion.
When to Call a Professional Plumber
While DIY methods can be effective, some blockages require professional help, especially if:
- The Clog Persists: If your sink is still blocked after trying DIY methods, there may be a deeper issue.
- There’s a Bad Smell: A foul smell from the sink can indicate a buildup of grease, food particles, and bacteria that needs professional attention.
- Recurring Blockages: If you’re dealing with repeated blockages, it may be due to a more extensive build-up or an issue with your plumbing system.
Plumbing Immediately professional plumber has the tools and expertise to not only clear the blockage but also provide solutions to prevent future issues. They may use specialised equipment, such as hydro-jetting, to remove fat build-up and restore your pipes to optimal condition.
Final Thoughts
While fat blockages in the sink are a common problem, they’re also preventable. By adopting some simple habits and using DIY methods, you can keep your sink flowing smoothly. But if the blockage becomes too stubborn, don’t hesitate to call a professional plumber to avoid more serious plumbing issues down the line.
For a permanent fix or if you need advice on proper maintenance, reach out to a trusted plumber. They’ll ensure your pipes stay clear and can offer solutions tailored to your home’s plumbing system.
Following these steps can save you time, money, and frustration from dealing with blocked sinks due to fat buildup. Keep this guide handy, and say goodbye to fat-clogged sinks for good!
