Why Choose Australian Tanks?
The Story
Every now and then we launch a new product that is so fundamentally simple and effective that we can't help but ask ourselves "why hasn’t this been done before?"
With this particular treatment tank, we had one thing in mind: Narrowing the price difference for a quality product that fills a market void for the challenging space that sits between shallow and deep sites.
And that's precisely what our new 9.5kl tank does, we’ve created a heavy duty concrete tank with the perfect mid level height, at a price point that keeps well within Australian Tanks renowned cost efficiency.
Simply put, this is an unrivalled solution when considering time and cost efficiencies, and an OSD solution that gets the job done simply and safely the first time – This tank comes from Australian Tanks - the original innovators and the best in clever, heavy duty rectangle, modular OSD solutions.
As with our entire range of tried and tested water and waste water civil solutions, we’re confident the 9.5kl treatment tanks are the ultimate fit-for-purpose product and when you do the comparisons on real costs and real benefits, offers the ideal combination of success factors for any project that needs an internal height of between 1.5 - 1.6 metres.Your Advantage
- 9,500 litre volume; easily interconnected in multiples to create any volume quickly and cost effectively
- Anti-Floatation and trafficable for mid to large scale infrastructure projects
- Installed and ready to be backfilled and complete in 1- 3 days on average
- Backup and commercial warranty
- Certified – engineer approved build with clear heavy duty load ratings
How it works: Inside an installed On-Site Detention Tank and see how any volume is achieved through connecting a number of modular tanks due to our innovative OSD design.
Cost Efficient
Australian Tanks solutions and systems are designed for small, medium, or large capacities and compete extremely favourably with alternative precast or built-on-site systems. Additionally, the lifecycle costs measure extremely well against alternatives as they are very easy to access, clean and maintain.
Quick Install
Every Australian Tanks system 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. Importantly, all systems are pre-cured with no further waterproofing required, ready for the site install to be completed in hours, not weeks, and can connected ready for backfill within the same day.
Immediately Trafficable
Australian Tanks provide tanks that are manufactured to Australian Standards and to allow for restricted heavy vehicle access based:
- Heavy duty construction rated for where the heaviest vehicle traffic will be a 4 axle twin steer truck (Max GVM 27.5t). Example: Garbage Truck.
- Un-restricted vehicle traffic loading in accordance with AS5100 can be provided with further engineering input to understand the client needs

Modular Design
The Australian Tanks range of tanks are easily interconnected in multiples to create any volume quickly and very cost effectively. Every system is certifiable, with increasing numbers of engineers incorporating Australian Tanks systems into their designs due to the structural integrity and multiple efficiencies the Australian Tanks solutions offer.
Design Life Warranty
Our products are easily modified to fit the volume required on your project. Along with other on-site parameters we can create the ideal custom solution for you and your team.
Designed for ease of use
These systems are designed for small, medium, or large capacities and compete extremely favourably with alternative precast or built-on-site systems. Additionally, the lifecycle costs measure extremely well against alternatives as they are very easy to access, clean and maintain.



Creating volume through altering the height whilst retaining the same footprint makes it easy for Australian Tanks to find you the right product. Combined with the modular design, our OSD range will be able to meet the necessary volume of your project and any other engineering framework requirements.


Get in touch with our OSD specialist team.
Easily upload your plans and we'll supply you with a solution that meets the requirements of any project.
Case Studies & Articles
- Hutchinson Builders - Stormwater Detention
- DEQ Consulting Engineers - Stormwater Detention
"Why and When to Specify Australian Tanks."