Trade Enviro is an Australian environmental compliance supplier providing silt pits designed for regulated industrial and commercial environments. Silt pits are stormwater pre-treatment structures used to capture sediment and coarse solids at the source, helping prevent downstream blockages, equipment damage, and environmental contamination.
Our silt pits are supplied for applications where effective sediment control is required before runoff enters the stormwater system, supporting site compliance and reducing ongoing maintenance and clean-out costs.
Trusted by industrial operators across Australia
Available Configurations
| Model | Pit size | Outlet size | Grate rating | Notes |
|---|---|---|---|---|
| PT600/100 | 600 × 600 mm | 100 mm | Class B (medium duty) | Standard configuration |
| PT600/150 | 600 × 600 mm | 150 mm | Class B (medium duty) | Standard configuration |
| PT600/100D | 600 × 600 mm | 100 mm | Up to Class D (heavy duty) | Suitable for trafficable areas |
| PT600/150D | 600 × 600 mm | 150 mm | Up to Class D (heavy duty) | Suitable for trafficable areas |
Additional sizes, outlet configurations, and grate ratings can be supplied to suit site-specific requirements.
Where Silt Pits Are Used
Silt pits are installed at stormwater collection points where sediment and rubbish need to be captured before runoff enters downstream drainage infrastructure.
They are commonly used at:
- Industrial sites with exposed hardstand areas
- Construction and redevelopment projects
- Wash-down and service areas
- Sites with sediment-laden surface runoff
- Locations requiring pre-treatment before stormwater discharge
Silt pits help reduce downstream blockages, protect stormwater infrastructure, and support ongoing site compliance.
Where Silt Pits Are Not Suitable
Silt pits are not intended to function as full stormwater treatment systems and should not be used:
- As a replacement for engineered treatment systems
- Where fine pollutants or dissolved contaminants require removal
- In applications requiring continuous, unattended sediment management
- Where maintenance access is not available
In these situations, additional or alternative stormwater treatment systems may be required.
Silt pits are designed to capture sediment, not treat it. Captured material must be removed regularly to maintain hydraulic performance and prevent bypass. Failure to maintain a silt pit can result in reduced flow capacity and increased risk of downstream contamination.
Get the Right Silt Pit for Your Site
Every site has different runoff characteristics, access constraints, and compliance requirements. Selecting the correct silt pit configuration is critical to ensuring effective sediment capture and ongoing maintainability.
Trade Enviro supply standard and custom silt pit configurations to suit industrial and commercial stormwater applications across Australia.
Speak to a specialist to confirm the correct pit size, outlet configuration, and grate rating for your site.
