ATU Septic Systems Perth

ATU septic systems (Aerobic Treatment Units) are a council-approved wastewater treatment solution for properties across Perth and Western Australia. These systems use oxygen-based treatment to break down wastewater more efficiently than conventional septic tanks, producing higher-quality effluent with reduced environmental impact.

In Perth, ATU systems are commonly required for properties with limited space, high groundwater levels, or specific council and Department of Health WA regulations. At SAGGERS Wastewater & Civil Solutions, we specialise in the installation, servicing, and long-term maintenance of ATU septic systems to ensure compliance, reliability, and environmental protection.

What Is an ATU Septic System?

An Aerobic Treatment Unit (ATU) is an advanced wastewater treatment system that uses aerobic bacteria and mechanical aeration to treat household and commercial wastewater. This process produces clearer, cleaner effluent compared to traditional septic systems, reducing risks to soil, groundwater, and nearby waterways.

ATU systems are designed to operate efficiently on smaller properties and in environmentally sensitive areas. They require smaller leach fields and are commonly used where conventional septic systems are unsuitable due to site constraints or regulatory requirements.

Excavator and workers installing septic system components at a construction site.

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    Why Choose Us

    Workers using an excavator to remove tree roots from a septic system access point.

    Inspecting Aerobic Systems

    Regular inspections are essential to maintaining your ATU’s efficiency and longevity. At SAGGERS Wastewater & Civil Solutions, we recommend conducting ATU readings every three to six months, tailored to your system’s design and usage levels.

    Our team is equipped to manage sludge build-up, which can impact the treatment process, ensuring your system remains in top condition. With our comprehensive maintenance plans, you can rest assured that your ATU is in professional hands.

    Aerobic Septic System Installations

    Proper installation is critical to your ATU’s effective operation and compliance with local health regulations.

    Our experienced team ensures all installations meet stringent standards set by local councils, protecting your home from potential contaminants. We are well-versed in various ATU models and can guide you in selecting and installing the best system for your needs. Trust SAGGERS Wastewater & Civil Solutions to provide professional and reliable installation services that ensure flawless operation.

    Dealing with site flooding or blockages? We provide stormwater drain cleaning.

    Aerobic Treatment Unit (ATU) septic system installation by Saggers Group.
    Workers using an excavator to remove tree roots blocking a septic system access point.

    Maintaining Your Aerobic Treatment System

    Routine maintenance is vital to your ATU’s performance and durability. We offer tailored services to keep your system running efficiently, including:

    • Routine sludge removal
    • Emergency repairs
    • Preventative measures to minimise odours and system failures

    Rely on our experienced technicians for prompt, professional service whenever your wastewater treatment system requires attention.


    Our Commitment to Service

    At SAGGERS Wastewater & Civil Solutions, we specialise in expert pump-outs and comprehensive maintenance for ATUs. Our team ensures every component of your system, from the aeration chamber to the final effluent pump, is functioning efficiently and safely. We inspect air compressors, diffusers, control panels, and leach drains to keep your system operating at peak performance.

    If your ATU is due for a service or showing signs of trouble, don’t wait for bigger issues to arise. Regular maintenance not only extends the life of your system but also protects your property and the environment by ensuring high-quality wastewater treatment.

    Side view of a Saggers Liquid Waste truck with a green waste tank, Isuzu truck model.

    Frequently Asked Questions

    What is an ATU system?

    An Aerobic Treatment Unit (ATU) is a wastewater system that uses oxygen-fed aerobic bacteria to rapidly and efficiently break down household wastewater. Unlike traditional septic tanks that rely on anaerobic bacteria and produce stronger odours and less treated effluent, ATUs generate clearer, safer effluent suitable for uses like garden irrigation.

    ATUs process wastewater in several stages:

    1. Primary Chamber: Solids settle to the bottom, and scum forms at the top.
    2. Aeration Chamber: Wastewater is oxygenated, aiding bacteria in breaking it down further.
    3. Settling Chamber: Solids are further clarified and settle to the bottom.
    4. Disinfection Chamber: The treated water is disinfected before being pumped out for reuse, such as irrigation.

    The cost of an ATU system varies based on site conditions, system type, and council requirements. Contact our team for a site-specific assessment and tailored quote.

    Yes, it is recommended to pump out the sludge from an ATU system every 4 to 5 years to maintain optimal efficiency.

    Absolutely. The treated wastewater from an ATU is safe and effective for irrigating garden beds, orchards, and similar applications.

    Yes, we offer ATU installation, inspections, and maintenance services to customers across Western Australia.

    Thinking About Getting Your Own Septic System?

    Contact SAGGERS Wastewater & Civil Solutions today to learn more about our septic tank services.

    Past Projects

    Liquid waste truck servicing sewer tank

    Ongoing Industrial Wastewater Servicing for a Major Kwinana Manufacturing Facility

    Ongoing wastewater servicing for a major Kwinana manufacturing facility.
    Opened drain chamber for cleaning

    Full-Service Septic Tank Maintenance for Residential Properties Across Mandurah and Peel

    Septic tank maintenance for residential properties across Mandurah and Peel.
    Testimonials

    What Our Customers Say About Us