
ACO has an established Technical Services Department with many years experience advising on surface drainage in civil infrastructure applications.
This free service is offered with no obligation and is supported with extensive, high-quality information, brochures and technical documentation. Services include advice at project design stage through to on-site support as required.
askACO is a corporate initiative designed around advice and industry education. Services are offered free of charge and obligation and are design to compliment (not substitute) professional engineering advice.
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The services deal with each project’s unique, hydraulic, structural, maintenance and spatial requirements.
These factors are critical in creating a reliable stormwater infrastructure design. No two projects are alike, which is why careful assessment of these requirements is essential to achieving optimal results. From analysing complex hydraulic and structural needs to planning for stormwater maintenance and inspection, ACO carefully evaluates every detail to provide solutions that meet the specific demands of each project.
The service is fully documented and is offered free of charge and obligation.
Comprehensive documentation is crucial for successfully implementing and managing stormwater detention and retention systems. It provides a clear framework and helps all stakeholders access the necessary details for effective installation and long-term performance. This thorough approach also streamlines future stormwater system maintenance and inspection.
ACO offers these services free of charge and without obligation because we are committed to giving every project the best possible start. By removing cost barriers, we empower clients to make confident decisions and select the most suitable stormwater infrastructure design without hesitation.
Reach out to explore how our free services can simplify your stormwater infrastructure planning and set your project up for success.

Hydraulic design manages surface runoff and temporary stormwater storage to reduce runoff volume, speed and frequency, using site-specific, approved methods. ACO can size StormBrixx tanks or users can self-design via the Configurator, receiving recommended dimensions, materials, accessories and assembly time.
askACO to propose the correct tank size

Structural design ensures the ACO StormBrixx® system can safely support applied loads. After selecting retention, detention or infiltration, designers assess soil type, vertical and horizontal loads, groundwater, cover depth and surface finish. Deflection and long-term creep must be considered to prevent pavement deterioration and ensure durability.
askACO to propose the correct tank size

For Australian designers, at top left of screen – select Metric & CIRIA
ACO can supply each tank with a correctly sized geomembrane or geotextile wrap specific to the needs of your project. Impermeable geomembranes are for retention and detention applications. Permeable geotextiles are for use in infiltration applications.
For more info, click here
askACO to recommend the tank’s geowraps

To download a pdf of ACO’s services, click here.
ACO StormBrixx® tanks can be sized using the STORMupdated programme by Cleanstormwater. STORMupdated is a free online WSUD (water sensitive urban design) and OSD (on-site stormwater detention) compliance tool for use by councils and consultants.
Reports from STORMupdated can be submitted to local government / councils along with the development application (DA) to demonstrate compliance with local guidelines.
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Benefits of Having a Properly Sized Tank From the Get-Go
- Early Planning Saves Time and Money — Correctly sizing your stormwater retention system from the start reduces costly changes later in the project.
- Prevents Overflow and Flooding — A well-planned underground water retention system effectively manages stormwater during peak flow events.
- Compliance and Efficiency — Getting the dimensions right for on-site retention systems helps meet regulatory requirements early and avoid compliance issues.
- Optimised Space Utilisation — Accurate sizing maximises storage capacity and ensures that valuable site space is used efficiently.
These benefits apply to other applications, making proper planning and sizing critical to successful stormwater management solutions.
Contact Us
Reach out to ACO today to discuss your requirements. Our team is ready to help you determine the correct tank size and recommend the ideal stormwater management solution for your site. We’re also available to answer any questions you may have and provide expert advice to support your project needs.
Download ACO’s White Paper: Minimise the risk when integrating underground geocellular stormwater tanks (Endorsed by Engineers Australia), click here
Book a CPD session, click here






