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RainSmart® Stormwater Modules

The RainSmart® modular tank system is suited for subsurface infiltration, retention and detention stormwater applications.

The modules are manufactured using recycled materials and provide a lightweight, structural component to an engineered design. The system is ideally suited for the construction of underground infiltration, retention, detention tanks, grass swale, subsurface interception channels, septic leach drains and lightweight void fillers for roof garden and planter box applications.

The RainSmart system supersedes traditional gravel and pipe-based systems. The system provides a void space ratio of over 95%, compared to 30 – 40% in typical gravel and pipe based systems. Consequently, the RainSmart system offers a smaller footprint for the same storage volume. This provides a significant saving in the amount of excavation, soil transport, imported clean aggregate, thus reducing earthworks related installation costs and causes minimum site disruption.

The modules are available in kit form, making transporting economical and easy to handle. The lightweight and stackable nature of the tank modules ensures installation is quick and easy, eliminating the use of heavy machinery.

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The modular design and structural capabilities distribute loads evenly and allow usage in both trafficable and landscaped areas offering a high safety factor. The design also enables the user to create any shape and size of the underground stormwater structure, without disturbing the surrounding site and maximising land use.

RainSmart modules have a unique low flow design to provide total linear access, invaluable for inspection and maintenance purposes. This allows the designer to efficiently control the build up of sediments in the tank and for flushing the system if ever required.

Interested in our RainSmart Standard Drawing & Calculator? Click here to learn more.

Benefits & Features

5 Plate Single Module Assembly

RainSmart Stormwater modules are easy to assemble simply by using a rubber mallet.

Download the Installation Guide for more comprehensive installation instructions.

Frequently Asked Questions

300mm of cover material is needed for non-trafficable applications. Trafficable areas require 600mm of granular cover material with DuraGrid X geogrid installed 300mm above the system and extended 1.5m horizontally beyond the edge of the system. Please note, the RainSmart plate configuration shall be specifically designed by the project engineer for installations with more than 2m of cover or trafficable applications with less than 600mm of cover.

Non-trafficable areas with 0.3m to 2m of cover should use 4-Plate modules. Trafficable areas with 0.6m to 2m of cover should use 5-Plate modules. Please note, the RainSmart plate configuration shall be specifically designed by the project engineer for installations with more than 2m of cover or trafficable applications with less than 600mm of cover. 7-Plate modules will likely be required for these applications.

RainSmart modules are supplied flat packed and will need to be assembled on site. Building the modules should take 2-3 minutes per module layer. This is a conservative estimate used to approximate the total man hours needed for assembly (refer to page 5 of the RainSmart Installation Guide). Note that this time frame relates to assembly only. The time required to place the modules within the excavation will be dependent on site accessibility and layout. If practical for your site, installation can be sped up by assembling the modules in the excavation.

RainSmart linear access systems offer an economical and low maintenance system
Modular structure for design flexibility
A robust yet lightweight system that is simple to install without specialised equipment
Flat-packed kits for easy transportation
Removes the need for above ground ponds and tanks that use valuable space and are health and safety risks

Specifications

Code	Product	Size (L x W x H)	Modules per m³*	Module Storage Capacity (m³)
76349	5 Plate, Single Module	0.715 x 0.4 x 0.44	8.37	0.11947
76354	5 Plate, Double Module	0.715 x 0.4 x 0.86	4.28	0.23364
13635	5 Plate, Triple Module	0.715 x 0.4 x 1.28	2.88	0.34777
13666	5 Plate, Quad Module	0.715 x 0.4 x 1.7	2.16	0.46197
76351	5 Plate, Penta Module	0.715 x 0.4 x 2.12	1.74	0.576

* Modules required per 1m3 of stormwater storage, considering a 95% void ratio.
4 and 7 plate options available. Please contact Cirtex® technical support team for assistance on selecting the correct configuration for your application.