"Pre-cast is the future. The only reason people are still using block and slab is because they’re behind the times.”
7 Out of 10 Engineers Now Specify Pre-Cast Systems Over Block and Slab.
What are the major benefits?

delivered to site pre-cured

Anti Floatation, No Additional Ballast Required

Tailored to suit all depths and volumes

Installed In Hours not Weeks
"As a business, we’ve decided pre-cast has to be the only way to go for Onsite Detention."
Cost wise, personally I’ve worked it out to be the far more favourable option when all things are considered such as materials, labour and time. It’s far more economical and there are many more savings to be made, particularly when you include saving time on the end product, which ultimately means a savings on interest repayments on the structures/buildings themselves. As a business, we’ve decided pre-cast has to be the only way to go for Onsite Detention.
Aaron Glowka, Impact Civil
Why Are Pre-Cast Systems Superior to Block and Slab?

The pre-cast method for containing and distributing stormwater detention is a relatively modern concept that was developed in response to the pitfalls of the more traditional method.
It involves constructing the entire tank to size offsite, in a controlled factory environment and then a simple few days installation period onsite (depending on the size of the construction site and development under construction).
This means that weather conditions don’t affect the longevity of a project, a huge amount of time is saved in the process of installation and most importantly, workplace health and safety hazards are reduced significantly.
“The biggest thing for us is the minimal down time required on site for access and installation. We can put in a huge 250,000 Litre system in just 3 days versus potentially 4 – 8 weeks of down time sometimes longer.”

Safety is always a big issue on development sites. When using pre-cast a lot of safety hazards are minimized due to the tanks being pre-made offsite.
Trades are not physically working inside the actual tanks so are no confined space works happening.
It also minimises issues that may arise through construction of the actual tanks, it’s already an engineered product, versus building a site specific product that could encounter a variety of site specific problems.
The pre-cast method is also extremely versatile and can be used for all types of developments, from small scale right through to large commercial projects.
“It's far easier to control all the safety components of a project in an environment like a factory and then bring the product onsite, versus having an open hole, usually a very large one, where lots of different contractors and equipment are being worked on simultaneously. Using a block and slab method is not ideal from the workers perspective. It’s a much more preferable option to be in a predictable environment where possible.”
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Trusted Clients that Utilise our Unique System




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Over the past three years Australian Tanks has developed and refined
an EASY, FAST & COST EFFECTIVE solution to On Site Detention
Precast modular Solutions
Precast module systems are designed for small, medium, or large capacities. The systems can arrive on site with weir walls, filtration, penetrations, trash screens, ladders, risers, manholes, drainage holes and orifice plates in place, ready for immediate install in the prepared site excavation. All ATQ systems are pre-cured with no further waterproofing required, ready for the site install to be completed in hours, not weeks , and can be connected ready for backfill within the same day.
Our heavy duty trafficable detention system consists of one, or multiple anti-floatation rectangular tanks that are easily interconnected to create any volume quickly and cost effectively.
The ATQ-7-TS 7,000 litre tank has a lower internal height, so is perfect for shallow requirements of many small On Site Detention systems.
The ATQ-12-TS 12,000 litre modular tank is larger and more robust so can achieve even more substantial and deeper detention solutions.
The Parthenon is for large scale requirements over 150,000 litres. It provides unrivalled versatility in footprint layouts and can be configured to avoid building piles and services. The typical internal height range is 500mm to 2700mm with a special project capability of up to 5m. The size of each component is designed to maximize freight and installation efficiencies.


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Precast Solution For 150,000 to 8 Million Litres
Do you need a cost effective solution for large scale requirements?
Our newest offering "The Parthenon" provides unrivalled versatility.



We Pride Ourselves On Innovation
Maximising improvements in the industry and site efficiency is paramount. A Pre-cast solution takes it to the next level. As an example, a large project could mean 3-4 months of onsite work and construction at least.
If a pre-cast solution is used, the entire site can continue on with work as normal with no interruptions while the tank is manufactured off site and then when ready, only takes about 2 weeks to install and another week on top of that to finalise.
Altogether, it creates a significantly more efficient site plan as a whole and frees up the project managers elsewhere. Not only does this save time and money for construction, but because the project can launch earlier, that means there is extra time where the developer can generate extra revenue because of the saving in time. The flow on benefits are huge.
