Above-Ground Septic Tanks

Call us at 1300 770 594 or fill out our online booking form to get in touch.

  1. Septic Systems
  2. Above-Ground Septic Tanks

Do You Need an Above-Ground Septic Tank Specialist?

Have you recently purchased land that requires an above-ground septic tank system and don't know where to start?

Express Wastewater are the experts when it comes to septic tanks, whether above ground or underground. We are the leading supplier and installer of concrete and plastic above-ground septic tanks in South East Queensland.

We offer affordable above-ground septic tank solutions to suit your household or business needs and property size. With years of experience in wastewater management, our technicians are committed to providing top-notch services and superior quality products.

For a free consultation and quote, call our professional septic tank installers on 1300 770 594 or fill out our online booking form today.

Book An Above Ground Septic Tank Installation Today!

Call us at 1300 770 594 or fill out the form and we will get in touch with you as soon as possible.

How Does An Above-Ground Septic Tank Work?

An above-ground aerobic septic tank can be concrete or plastic and is strong and extremely durable. They are installed above ground in a convenient and accessible location on your property and are ideal for areas with challenging soil conditions or where underground installation isn't an option.

How an above-ground septic tank works is straightforward and extremely effective in all situations.

  • The wastewater from your home or business, such as water from toilets, sinks, and showers, enters the septic tank through an inlet pipe.
  • Once the wastewater is inside the tank, it separates into two layers. The first is solids such as food particles and toilet paper that will sink to the bottom, forming sludge. The second is light liquids referred to as effluent that rise to the top. After entering the tank, the waste is broken down by anaerobic bacteria found in the sludge, reducing its volume and odour.
  • The partially treated effluent will then flow out of the tank through an outlet pipe and into a disposal field or a secondary treatment system, such as a soak or absorption trench or a mound system.

Speak to one of our knowledgeable team for more information about above-ground septic tanks or read our article: How does a septic system work?

Above ground septic tanks in Samford

What's The Difference Between an Above-Ground Septic Tank and an Underground Septic Tank?

When you think of septic tanks, chances are you're picturing a large tank buried deep underground. However, there is a time and a place for above-ground septic tanks as they offer a practical alternative for properties where conventional underground installation isn't suitable.

While the main difference is obviously where the tank is positioned, the installation requirements, accessibility and suitability all vary from property to property. The right option for you depends on your property's soil conditions, groundwater levels, available space, site access and your overall wastewater treatment needs.

An underground septic tank is installed into the ground and covered with soil once complete, keeping the system at a consistent temperature and largely hidden from view. An above-ground septic tank remains accessible from the surface and can reduce the amount of digging and excavation needed on the job.

So which one should you choose? When choosing between these two types of septic tanks, it's important to consider where the treated effluent will go and how it is being treated as well as the overall site conditions.

Choose an above-ground septic tank if:

  • Your property's ground is rocky, shallow or has poor-draining soil
  • You have a tight installation budget
  • You need a temporary or easily accessible wastewater solution

Choose a below-ground septic tank if:

  • You need a long-term, hidden solution
  • Your soil is soft and suitable for excavation and has good absorption
  • You want an extra level of protection and system longevity
  • Want less risk of effluent runoff during heavy rain

Whatever type of septic system you choose, our professional and friendly team are here to help you make the right decision for your home, budget and wastewater needs.

An example of an above ground septic tank we installed

Things to Consider Before Installing an Above-Ground Septic Tank On Your Property

By understanding how an above-ground septic tank works and following proper maintenance practices, you can rely on its long-term effectiveness and environmental sustainability.

 

  • Pumping: Above-ground septic tanks require regular pump-outs to remove accumulated sludge and scum, ensuring their efficiency and preventing health risks. How often you perform a septic tank pump-out will depend on the tank and household size and volume of wastewater flow.

 

 

  • Permits and Regulations: Check with your local authorities for specific regulations and permits required for installing and maintaining an above-ground septic tank on your property.

Installing an Above ground septic tank

When Should I Install an Above-Ground Septic Tank?

An above-ground septic tank is typically used when traditional in-ground septic systems are not feasible due to specific site conditions. Environmental, geographical, or regulatory factors. Each of these scenarios often requires consultation with local authorities or engineers to ensure compliance with health and safety standards, environmental protections, and proper system design. Above-ground septic tanks are ideal in situations such as:

High Water Table

In areas where the groundwater level is close to the surface and digging for an in-ground septic system can risk contaminating the water supply.

Poor Soil Quality 

If the soil is not suitable for adequate drainage or treatment, such as clay or rocky soil, an above-ground system may be necessary.

Flood-Prone Areas

Locations prone to flooding make in-ground tanks impractical, as they can float or fail. Above-ground tanks are designed to remain functional even in wet conditions.

Shallow Bedrock

 In regions with shallow bedrock, digging deep enough for an in-ground septic system may not be possible or cost-effective.

Regulatory Requirements

In some locations, building codes or environmental regulations may require above-ground systems to minimise environmental impact.

Temporary Installations

An above-ground septic tank is the perfect option for construction sites or events, as they can be relocated.

Environmental Sensitivity

In areas near protected ecosystems or bodies of water, an above-ground septic tank minimises the risk of leaks or contamination.

Limited Space

Above-ground tanks offer a compact alternative when space for excavation is limited.

Above Ground Septic Tank Maintenance

Above-Ground Septic Tank Installations

At Express Wastewater, we understand the importance of having an efficient septic system and that proper installation is essential to ensure its effectiveness. To do this, our experienced technicians will assess your property’s size and layout, and work with you to understand your household's specific needs.

Once established, we can recommend the ideal design and size of your septic tank and provide detailed information in regard to the required work and tank cost, so you have a complete understanding. Before having a septic tank installed, it's advisable to consult with local authorities or septic system experts to ensure adherence to current regulations. This will avoid any potential issues or violations.

We pride ourselves on providing quality customer service for residential and commercial customers. With Express Wastewater, you can be sure your above-ground septic tank installation will be stress-free and handled and completed professionally.

While DIY videos show how to install a septic tank, it's best to leave this task to the professionals.

Septic Tank Installation

Our Complete Above-Ground Septic Tank Services SEQ

At Express Wastewater, we offer comprehensive above-ground septic tank services, including installations. Once your tank is installed, to ensure it remains in good condition and functions efficiently, regular maintenance is recommended. If you experience any problems, prompt repairs will avoid potentially unpleasant situations and give you peace of mind. We prioritise your convenience, health, and well-being, we handle every job with professionalism and the utmost care and minimum disruption to your daily routine. Services include

The Above-Ground Septic Tank Brands We Supply and Service

Whether you're looking for a concrete above-ground septic tank, a lightweight and durable polyethylene septic tank, or a heavy-duty above-ground polyethylene plastic septic tank, Express Wastewater offers the perfect style, size, and brand to meet your needs. Our septic tanks are corrosion- and chemical-resistant, making them extremely durable and long-lasting, saving you time and money on repairs or replacement.

We partner with leading above-ground septic tanks manufacturers such as:

Concrete above ground septic tank

Your Local Septic Tank Experts

Express Wastewater Solutions provides comprehensive wastewater solutions across South East Queensland. For a free 30-minute consultation, contact our experienced team on 1300 770 594 or complete our online enquiry form.

Express Wastewater Team

Frequently Asked Questions About Above-Ground Septic Tanks

What to do when your septic alarm goes off?
Is adding bacteria or enzymes in a septic tank beneficial?
What is a leach drain?

Some of Express Wastewater Projects