Grease Trap Perth Installations Guide

Grease trap perth plays a vital role in commercial kitchens, ensuring that wastewater flows smoothly and reducing the risk of clogged pipes. As plumbing devices specifically designed to separate grease waste from water, grease traps are essential for maintaining the proper functioning of a commercial kitchen’s plumbing system. In this blog, we will take a closer look at grease traps, their functions, different types, installation process, compliance with Perth regulations, and the cost of grease trap cleaning. Whether you are a restaurant owner or a plumber, this guide will provide you with valuable insights into grease trap installations in Perth and help you make informed decisions.

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Understanding Grease Traps

A grease trap, also known as a grease interceptor, is a plumbing device installed in commercial kitchens to separate grease, oils, and fats from wastewater. It serves as a barrier that collects solid grease while allowing wastewater to flow freely. By preventing grease waste from entering the water system, grease traps reduce the risk of clogged pipes, sewer blockages, and environmental contamination. There are different types of grease traps available, each with its own unique design and functionality.

The Function of a Grease Trap

The primary function of a grease trap is to separate grease, oils, and fats from wastewater generated in commercial kitchens. When hot water from sinks, dishwashers, and other kitchen equipment flows into the grease trap, it cools down, allowing solid grease waste to solidify and float to the top. This buoyancy principle enables the grease trap to capture and retain grease waste while allowing water to pass through freely. By collecting and containing grease waste, grease traps prevent it from entering the wastewater system, protecting pipes, sewer lines, and the overall water system.

Regular cleaning of grease traps is essential to maintain their effectiveness. Over time, grease waste accumulates in the trap, reducing its capacity and potentially causing blockages. By adhering to a maintenance schedule, commercial kitchen owners can ensure that their grease traps are operating at optimal levels, minimizing the risk of plumbing issues.

Different Types of Grease Traps

There are several types of grease traps available, and the choice of the appropriate type depends on the specific needs of a commercial kitchen. Here are some common types of grease traps:

  • Passive hydromechanical grease traps: These grease traps use gravity and water flow to separate grease waste.
  • Automatic grease removal units (AGRU): AGRUs are self-cleaning grease traps that periodically remove grease waste automatically.
  • Gravity grease interceptors: These grease traps rely on the difference in specific gravity to separate grease from wastewater.
  • Grease recovery devices: These devices efficiently extract fats, oils, and grease, making them suitable for high-volume commercial kitchens.
  • Under-sink grease traps: Ideal for smaller commercial kitchens, these grease traps are installed directly under kitchen sinks.
  • Understanding the different types of grease traps is crucial in choosing the right one for your commercial property. Consulting with professional trap services or licensed plumbers can help you determine the most suitable grease trap for your specific needs.

Installation Process of Grease Traps

Installing a grease trap is not a simple task and should be handled by experienced professionals, such as Perth plumbers specializing in commercial plumbing services. The installation process involves several key steps, ensuring the proper positioning and functionality of the grease trap. Let’s take a closer look at these steps.

Key Steps in Installing a Grease Trap

Installing a grease trap requires careful planning and execution. Here are the key steps involved in the installation process:

  • Site evaluation: A professional grease trap service will assess your commercial kitchen’s layout and determine the best location for the grease trap installation, considering factors such as the hot water system, water corporation regulations, and accessibility for maintenance and cleaning.
  • Excavation and preparation: The area designated for the grease trap installation needs to be excavated, ensuring sufficient space for the trap. Proper preparation of the area ensures stability and longevity of the grease trap.
  • Proper leveling: Ensuring that the grease trap is level is essential to its proper functionality. A slight slope may affect the efficiency of grease separation, leading to potential plumbing issues.
  • Connection to plumbing system: Experienced plumbers will connect the grease trap to the commercial kitchen’s plumbing system, using appropriate fittings and ensuring tight seals to prevent leaks and odours.
  • Testing: After installation, it is crucial to test the grease trap to ensure its proper functioning. This involves running water through the system, checking for leaks, and verifying that the grease trap effectively separates grease waste from wastewater.
  • Ongoing maintenance: Proper maintenance of grease traps, including regular cleaning, is essential for their longevity and optimal functioning. Hiring professional trap services can provide guidance on maintenance schedules, waste disposal, and compliance with local regulations.
  • By following these key steps, you can ensure the successful installation of a grease trap in your commercial kitchen, minimizing the risk of plumbing issues and maintaining compliance with regulations.

What is a grease trap and why is it important in Perth?

A grease trap is a plumbing device designed to intercept most greases and solids before they enter a wastewater disposal system. In Perth, it’s crucial due to stringent environmental regulations that aim to prevent grease buildup in sewers, which can cause blockages and environmental damage.

Perth Regulations for Grease Traps

In Perth, grease traps are subject to specific regulations under the management of the Water Corporation. These regulations aim to prevent sewer blockages and maintain the integrity of the wastewater system. It is essential for commercial kitchen owners to understand and comply with these regulations to avoid fines and penalties.

Compliance with Western Australia’s Grease Trap Regulations

Compliance with Western Australia’s grease trap regulations is crucial for businesses operating in the metropolitan area. To maintain compliance, businesses must adhere to the following guidelines:

  • Regular cleaning and maintenance: Grease traps should be cleaned regularly to remove accumulated grease waste. Liquid waste removal services, licensed by the Water Corporation, handle the proper disposal of grease waste.
  • Documentation: Businesses must maintain accurate records of grease trap cleaning, demonstrating compliance with regulations.
  • Licensed disposal facility: Grease waste from cleaning must be transported to a licensed disposal facility, ensuring its proper, responsible management.
  • Reporting and audits: Compliance includes timely reporting and participation in audits conducted by the Water Corporation to verify adherence to regulations.
  • By complying with Western Australia’s grease trap regulations, businesses contribute to the overall waste management efforts, protect the sewer system, and prevent environmental contamination.

Understanding the Consequences of Non-Compliance

The consequences of non-compliance with grease trap regulations can be significant. Failure to maintain grease traps properly can result in fines and legal actions, adversely impacting businesses’ reputation and finances. Blocked grease traps may cause disruptions in daily operations, leading to costly repairs, plumbing emergencies, and loss of customers. Moreover, non-compliance affects the integrity of the sewer system, potentially causing blockages and environmental harm. Understanding the consequences of non-compliance highlights the importance of adhering to grease trap regulations, emphasizing the need for regular maintenance, and proper waste management.

The Cost Factor in Grease Trap Cleaning

Grease trap cleaning is an essential aspect of maintaining the functionality of grease traps in commercial kitchens. The cost of grease trap cleaning varies depending on various factors, including size, frequency of cleaning, waste disposal, and service quality.

Average Costs for Grease Trap Cleaning in Perth

In Perth, the average cost of grease trap cleaning can range from average costs based on the size of the grease trap and the amount of grease waste that needs to be removed. It is important to note that the cost of cleaning may vary among service providers, so it is advisable to obtain multiple quotes before making a decision. Investing in professional grease trap cleaning services ensures compliance with regulations, minimizes the risk of plumbing issues, and contributes to the long-term efficiency of grease traps.

Factors Influencing the Cost of Grease Trap Cleaning

Several factors influence the cost of grease trap cleaning services in Perth. These include:

  • Size of the grease trap: Larger grease traps typically require more time and resources to clean, resulting in higher cleaning costs.
  • Frequency of cleaning: The more frequently a grease trap requires cleaning, the higher the overall cleaning costs will be.
  • Grease waste disposal: Proper disposal of grease waste at licensed facilities incurs additional costs, which may be reflected in the service provider’s pricing.
  • Service quality: Choosing a reputable and experienced service provider may result in higher costs, but it ensures high-quality service, compliance with regulations, and long-term maintenance of grease traps.
  • Considering these factors, commercial kitchen owners should evaluate their specific needs, maintenance schedule, and budget when selecting a grease trap cleaning service in Perth, prioritizing quality service and adherence to local regulations.


In conclusion, proper installation and maintenance of grease traps are crucial for both environmental compliance and cost-effectiveness. Understanding the functionality, types, and regulations surrounding grease traps can help businesses in Perth ensure they meet the necessary standards and avoid penalties. Whether opting for professional installation or a DIY approach, adherence to Western Australia’s regulations is paramount. By staying informed and proactive in grease trap care, businesses can not only save on cleaning costs but also contribute to a cleaner environment. Remember, compliance is key in maintaining a sustainable and efficient grease trap system.