TRICEL NERO RANGE - STORMWATER MANAGEMENT
Underground drainage system
OVERVIEW
An underground drainage system is a network of pipes, channels, and structures designed to collect and convey excess water from rainfall, surface runoff, and other sources away from urban or developed areas.
It serves to prevent flooding, erosion, and waterlogging by efficiently transporting stormwater to appropriate discharge points such as rivers, lakes, or treatment facilities.
Discover the Tricel Nero Range that contains two solutions: Tricel NeroStor and Tricel Rigofill, and considerations for your project.
Table of Contents
Type of Underground drainage system
In this article, we’ll compare two underground drainage systems from the Tricel Nero range.
Nerostor
Nerostor is a modular stormwater storage system designed by Tricel. It consists of high-density polyethylene (HDPE) chambers that you can easily interconnect to form underground storage structures. The system design to maximises the storage capacity while minimising the footprint you need.
Key Features of Tricel Nerostor
Modular Design
Nerostor’s modular design allows for flexible configurations to suit varying site requirements. Installers can adjust the size and layout of the storage system to accommodate specific project needs.
High Capacity
The chambers are capable of storing large volumes of stormwater, helping to alleviate pressure on drainage systems during heavy rainfall events.
Durability
Constructed from HDPE, Nerostor chambers are corrosion-resistant and designed to withstand the rigours of underground installation.
Easy Installation
We provide detailed installation guidelines, and the chambers can be quickly assembled on-site, reducing labour costs and installation time.
Rigofill
Rigofill is a stormwater attenuation system. Unlike traditional concrete tanks, Rigofill utilies lightweight plastic modules that are easy to transport and install.
The system is designed to promote efficient water infiltration and storage.
Key Features of Tricel Rigofill
Lightweight Construction
Rigofill modules are made from lightweight plastic, making them easy to handle and transport to the installation site. This feature simplifies logistics and reduces installation time.
Infiltration Capability
The design of Rigofill promotes water infiltration into the surrounding soil, helping to recharge groundwater reserves and reduce the risk of surface runoff.
Versatility
Rigofill modules can be configured in various layouts to accommodate site-specific requirements. This versatility allows for optimal use of available space.
Environmental Benefits
By promoting infiltration and groundwater recharge, Rigofill helps maintain natural hydrological processes and supports sustainable urban development.
Main differences between these 2 Underground drainage system
1. Material: Nerostor utilises HDPE chambers, while Rigofill modules are made from lightweight plastic. Both materials offer durability and corrosion resistance.
2. Installation: Both systems boast easy installation processes, but Nerostor’s modular design may offer slightly more flexibility in adapting to site constraints.
3. Storage Capacity: While both systems provide ample storage capacity, Nerostor’s modular chambers may offer a more efficient use of space compared to Rigofill’s modules.
4. Infiltration: Rigofill is specifically designed to promote water infiltration, making it an excellent choice for projects focused on groundwater recharge and sustainable drainage.
What system to choose for what project ?
Objective:
Tricel Rigofill focuses on flood mitigation and volume control by temporarily storing stormwater runoff, while Tricel Nerostor systems focus on infiltration and groundwater recharge by promoting the absorption of stormwater into the ground.
Components:
Attenuation systems (Rigofill) typically include storage tanks or basins with controlled outlets, while soakaway systems (Nerostor) consist of underground structures filled with permeable materials to facilitate infiltration.
Application:
Attenuation systems are commonly used in urban areas with limited space for surface detention ponds, while soakaway systems are suitable for areas with well-draining soils and where groundwater recharge is desired.
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Tricel Nero Range of Products
Tricel Rigofill
The Rigofill ST system features universal components for infiltration, retention and storage of stormwater runoff.
Tricel Nerostor
Tricel Nerostor chambers provide a sustainable underground stormwater management system that optimises groundwater recharge.
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Frequently Asked Questions
Why do you need attenuation ?
Attenuation offers a lasting remedy for mitigating the risk of flooding resulting from water runoff during extended periods of rainfall. These systems incorporate a flow control chamber designed to regulate the volume of water discharged into a nearby sewer system or watercourse, such as a river or reservoir.
How close can stormwater attenuation be to a building?
Unlike a soakaway system, underground floodways can be positioned much closer to a building. The critical consideration is ensuring that the building load or foundation load does not impact the tank. Ideally, if you were to draw a 45-degree angle from the foundation, that line should not intersect the tank. However, this may vary depending on the depth of the tank. Nonetheless, they can be situated in proximity to the building.
What are critical factors to consider with stormwater?
The main factors to check out to choose the best system for your project are :
- Stormwater System Application
- Sizing
- Footprint
- Cover Depth
- Base Preparation
- Stormwater System Construction Equipment
- Backfill
- Product Material
Stormwater System Total Installation Cost
How do flood tunnels work ?
How does attenuation work?
Attenuation serves as a straightforward system for storing excess water, receiving water from various inlets like pipes and channel drains while typically having a single outlet. Acting as a void, the tank allows water to accumulate, preventing downstream drains from becoming overwhelmed during heavy storms. The outlet usually incorporates a flow control device, such as an orifice plate or vortex flow control, to regulate the discharge rate of water. Tank size is determined based on factors such as rainfall, surface area, and considerations for climate change.
Properly designed tanks should consistently accommodate the site’s water volume.
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