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Post By Admin
March 18, 2025
Kitchen Grease Trap: What It is and How to Buy the Right One

Imagine this: you’re whipping up a hearty Sunday breakfast – sizzling bacon, fluffy pancakes, and buttery scrambled eggs. But as you rinse those greasy pans, that rich aroma quickly turns into something… not so pleasant. 

Ever wondered where all that grease goes? That’s where a kitchen grease trap comes in handy. It quietly catches the fat and oil before they clog your pipes. 

Without it, you might find yourself dealing with some nasty odours and calling blocked drain services more often than you’d like.  That’s why, we’re here to guide you all the things you need to know about the grease trap.

What is a Grease Trap?

image of a grease trap

So, what exactly is a grease trap? Picture a sturdy metal or plastic box, usually tucked away beneath your sink – that’s an under sink grease trap. 

It’s a hidden hero in your kitchen sink, quietly doing its job while you cook and clean.

Basically, it’s designed to catch all the greasy gunk from your cooking before it flows into your plumbing system. Pretty neat, right?

Benefits of Using a Grease Trap in Your Kitchen

benefits of using grease trap in the kitchen

Using a grease trap in your kitchen isn’t just for commercial kitchens – it’s a game-changer for homes too! Here’s why installing a grease trap is a smart move:

With all these benefits, your kitchen will stay fresher, cleaner, and free from nasty surprises!

How Does a Grease Trap Work?

how a grease trap works

So, a grease trap is made up of three main parts:

  1. Inlet Pipe: This is where wastewater from your sink enters the trap. It carries the grease, oil, and food particles along with the water.
  2. Baffle Walls: These are barriers inside the trap that slow down the water flow. Since grease and oil are lighter than water, they naturally rise to the top while heavier food particles sink to the bottom.
  3. Outlet Pipe: Clean water flows out through this pipe and into the drainage system, leaving the grease and solids trapped inside.

The system works by using the simple principle that oil and water don’t mix. 

As the water moves through the trap, the grease and oil are separated and stay behind. This prevents them from clogging your pipes and causing unpleasant odours.

For kitchens, inspecting the grease trap every 1 to 3 months is ideal, depending on how often you cook. 

If you frequently cook oily or greasy dishes, you may need to check it more often to prevent buildup and keep your plumbing in top shape

What You Should Consider When Choosing a Grease Trap

Choosing the right grease trap isn’t just about grabbing the first one you see—it’s about finding the best fit for your kitchen. 

Here’s what you should keep in mind:

1. Size

Think about how much cooking you do. A small household that cooks occasionally won’t need a large trap, but if you’re always frying and roasting, a bigger trap will handle more grease before needing a cleanout. 

If your trap is too small, it’ll fill up quickly, leading to frequent maintenance (and possibly unclogging oil in the sink—which nobody wants!).

2. Location

location of the grease trap

Where do you want your grease trap? Most homeowners go for an under-sink model because it’s convenient and easy to access. But if you have a bigger kitchen or do a lot of cooking, an outdoor or underground trap might be a better choice.

3. Material and Durability

types of grease trap

Grease traps come in plastic, stainless steel, and even concrete. Plastic is budget-friendly but may not last as long, while stainless steel is more durable and resistant to corrosion. 

If you want something that lasts, go for a high-quality material that won’t break down over time.

4. Ease of Cleaning

Let’s be real—nobody enjoys cleaning out a grease trap. Some models have removable baffles and easy-access lids, so its maintenance is way less of a hassle. 

So, check how simple it is to open and clean before you buy.

5. Local Regulation

Some areas have rules on grease trap size, installation, and maintenance. Before making a purchase, check if there are specific regulations in your area to avoid fines or plumbing issues down the line. 

In Melbourne, only a licensed plumber should install your grease trap to ensure compliance with local guidelines and regulations.

FAQ about Kitchen Grease Trap

1. How do I know if my grease trap is clogged?

If your sink is draining slowly, there’s a bad smell coming from the drain, or you notice grease backing up, your grease trap is likely clogged. It’s time for a clean-up!

2. How often does a grease trap need to be cleaned?

For most home kitchens, cleaning every 1 to 3 months is a great start. If you cook a lot of greasy food, check it more often to prevent blockages and odours.

3. How to clean a grease trap in the kitchen?

For stubborn buildup, consider a professional cleaning service.

4. Can you install a grease trap yourself?

Yes, but only for small under-sink grease traps. If it’s a larger system or needs to comply with local regulations, it’s best to hire a licensed plumber to ensure proper installation.

Conclusion

Congrats! Now you know what a kitchen grease trap is and why it’s important. 

Regular maintenance ensures it works efficiently, but if you’re dealing with stubborn clogs or need a new installation, let the experts handle it. 

Call Neighbourhood Plumbing for professional assistance and keep your kitchen doing its best job!

About the Author

Ricky Rizz

From unclogging the toughest drains to repairing leaking toilets, Ricky is a seasoned plumber who has brought his craftmanship to homes across Melbourne. He is passionate about sharing plumbing tips just as much as he is about fixing your plumbing issues. So, when your taps or pipes begin leaking, you know who to call.

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