StormBrixx is an innovative, modular, underground geocellular stormwater management system designed for surface water retention, detention and infiltration.

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Detention system also known as ‘OSD’ (On-site Stormwater Detention) or ‘attenuation’ is the process of holding and releasing the water slowly back into the stormwater system or natural water courses reducing the risk of flooding downstream following an intense storm.

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Retention system (storage) or ‘rainwater harvesting’ is the collection and permanently storing of rainwater for reuse to water gardens, fields and lawns.

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Infiltration system like ‘soakwells’, stores the water temporarily and allows the water to slowly seep back into the ground as the water table drops. Water is filtered through the surrounding sandy soil to recharge the groundwater.

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Geomembranes are used to wrap detention and retention tanks.  They are impermeable and are taped together with butyl mastic tape to hold in the water.  For site sensitive locations, such as near building footings, geomembranes can be welded together for a watertight tank by an experienced plastic welder.

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For infiltration tanks, a permeable woven geotextile is recommended to allow the water inside the tank to slowly seep into the surrounding ground.  For detention and retention tanks, a non-woven geotextile is recommended on the outside of the geomembrane to protect the geomembrane from punctures during backfilling.

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ACO recommends 100mm of coarse sand over the top of the tank, then at least 400mm of backfill before a small roller or excavator can be used to lightly compact the material.  Depending on the cover required, add more fill or cut back the compacted fill to accommodate slab. Note, compaction plant over the top of the tank should not exceed 2,300kg per metre width. Do not park any vehicles over the tank until the final pavement has been installed.

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A vent is required to allow the air to escape when the tank fills up with water to eliminate the risk of internally pressurising the StormBrixx tank.

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The StormBrixx tank pillar design allows the whole tank to be inspected.  The tank can be inspected through access or inspection points connected from the top of the tank to the surface level, or through the inlet and outlet pipes.  Cameras can be lowered into the StormBrixx tank to inspect the tank for silt and sediment.  Pressure washers can be used to break up any silt or sediment.  A sucker truck with a vacuum pump is used to suck out all the water and the suspended silt/sediment.

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ACO StormBrixx® is a trusted leading brand in surface water drainage and management, offering advanced and sustainable solutions tailored to address the challenges of stormwater control. Designed with intelligent engineering, our surface water drainage systems provide efficient ways to manage surface water, prevent flooding and protect valuable infrastructure, ensuring resilience in urban and rural environments.

At ACO, we recognise the importance of managing stormwater to protect properties and natural ecosystems. That’s why we focus on innovative industry solutions that promote water conservation and effective drainage.

Read on to learn more about the hurdles you may encounter during the surface water management cycle and how we can support your space.

Our surface water management cycle approach reflects a complete system that addresses each stage of stormwater control. This cycle starts with capturing and treating rainwater, progresses to controlled storage and flow regulation, and ends with safe discharge back into the environment.

Through each step, ACO StormBrixx® solutions are designed to effectively manage stormwater volumes, whether for urban developments, commercial sites or public spaces. By controlling stormwater flow, you’ll reduce the risk of erosion, safeguard property foundations and contribute to sustainable urban planning.

Let’s explore how we design and build the right integrated water cycle management solution in greater detail.

Surface water management begins with an assessment of the hydrological demands of the project landscape. The rainfall and topography determine the surface water solution devised. ACO provides expertise in both the assessment and provision of product solutions to collect surface water across the site.

In hard-surfaced areas, the extensive range and capacity of ACO trench surface water drainage products offer high capture performance along the total length of the trench run, thereby reducing the occurrence of ponding or unwanted runoff.

The safety and convenience of people, buildings and traffic areis assured with ACO trench surface water drainage products and surface water is managed toon to its next stage in the water management process.

Water quality is an important factor when designing a surface water management solution. Surface water runoff is at greater risk of contamination from increased urbanisation and transportation demands on the environment. Government policy and planning guidelines require water quality to be taken into account to prevent contamination of surface and groundwater. If untreated water is discharged into the natural surroundings, it could endanger plants and wildlife, only emphasising the need for preventative methods.

Contaminations come in many forms, such as siltation containing suspended hydrocarbons and heavy metals, tyre wear, brake dust, soot, sediments and de-icing products used during winter months in alpine regions.

ACO offers a number of treatment units to deal with water quality, including heavy metal and suspended solids separators and gas/oil interceptors. These can be combined with swales, so clean water can nourish an onsite wildlife area and allow wildlife and biodiversity to flourish.

With increasing urbanisation, larger areas of landscape are being covered with impermeable surfacing. This increases the risk of flooding. The natural water cycle of infiltration, evaporation and evapotranspiration is hindered. Solutions such as ACO StormBrixx® can be used to store and slow down the surface water runoff rate to natural levels. These geocellular systems can be used for retention, detention and infiltration, as well as contributing to Water-Sensitive Urban Design (WSUD).

ACO StormBrixx® can help support the stormwater network by providing the capacity to meet these high-risk flooding scenarios. They can also be used to protect surrounding water networks and inhabited areas through a controlled discharge into the groundwater that mimics natural infiltration.

To meet the limiting capacity requirements of stormwater networks and natural waterways, water discharge rates are controlled on-site by either an orifice plate or vortex flow controllers.

ACO has solutions for both environments with units sized to match legislated run-off rates or the runoff rate from a greenfield equivalent to ensure that the infrastructure and environment are not put under strain.

Our water management cycle systems are easy to install and low maintenance, making them a practical choice for long-term use. The adaptability of our surface water drainage solutions means they’re suited for a wide range of applications, from managing heavy rainfall in metropolitan areas to supporting green infrastructure projects aimed at natural water absorption.

Explore the ACO suite of surface water management cycle solutions and discover how our stormwater drainage and flow control expertise can benefit your upcoming project.