The Enviropod LittaTrap is a patented modular , versatile inlet filter device that is designed to capture trash, debris, sediments and other pollutants of concern conveyed in stormwater runoff.
The LittaTrap's mesh basket is designed to capture and retain 100% of plastic and other gross solids over 5mm. The basket has high hydraulic conductivity, lightweight and is structurally robust, designed with engineered inert plastic for a 25 year lifespan.
The LittaTrap has been manufactured at three standard sizes to fit a range of catch basin structures, and custom designs are available.. The LiitaTrap can also be designed for different pollutant removal requirements using site-specific catch basin filter performance liner.
The patented design reduces the energy of inflowing water for the full capture of gross solids. The novel design maintains catch basin hydraulic conductivity and allows easy maintenance of the basket when full and also in the sump below.
- Storage of captured dry gross solids
- High capacity pollutant storage
- Superior pollutant removal with high hydraulic efficiency
- Design flexibility
- Installing a LittaTrap can reduce the risk of stormwater infrastructure blocking further downstream or act as pre-treatment for other treatment devices.
Capture and retain all plastic and other trash over 5mm including cigarette butts
Lowest cost treatment available – No construction means low capital costs
The LittaTrap has improved H & S with the inclusion of four lifting handles on the basket - designed for safety. The lightweight basket is designed to be lifted by hand.
Independently trialled and tested by city councils throughout Australia and New Zealand and with the installation of over 50,000 units worldwide including North America, the Enviropod LittaTrap is the most specified and installed pit insert in Australasia.
(Independently tested by Auckland University, NZTA, Auckland Council, Tauranga City Council, University of South Australia.)
Simple step-by-step install.
The new support bracket uses a cantilever mechanism to enable the system to be mounted from one gully pit wall; halving installation time.
Using passive screening , the LittaTrap can be customised to meet site-specific requirements with interchangeable performance liners ranging from 100 to 1000+ micron pore size
The performance of the LittaTrap can be enhanced by the use of liners. The liners are easily attached to the LittaTrap basket and allow the capture of finer particles.View stormwater filter liners
The innovative design of the LittaTrap allows for installation across a wide range of grate inlets. No two catch basins are the same which makes other catch basin inserts difficult or expensive to install. The LittaTrap has standard sizes and flexibility using simple to use seal kits allows for professional and high performance installations.
The advantage of using a LittaTrap is the modular design. This allows for standard units unit any curb inlet infrastructure, despite the field constraints.
The LittaTrap can be installed easily within a range of round stormwater infrastructure. We use a bracket which is as easy to install as the LittaTrap itself. The round seal kits can then be used to finish off the install that looks professional and provides optimal flow of water into the system
The LittaTrap EMMA Curb Inlet Filter model is designed to convey stormwater runoff from the curb inlet opening to the LittaTrap basket, with the basket positioned directly under the manhole access opening. This feature allows maintenance crews to gain access to the LittaTrap basket from the surface and eliminates the need for confined space entry during routine maintenance service.
Before installing a LittaTrap, the catch basin needs to be assessed and measured to gauge suitability. Follow the step-by-step guide to ensure the catch basin is measured accurately..
Traffic control must be well planned when installing or inspecting a LittaTrap. All standard rules and regulations governing Traffic Control and Health & Safety while working on the road must be followed at all times. All potential hazards must be identified and control methods put in place prior to undertaking any activity.
Ensure to follow the instructions when installing a LittaTrap.
The LittaTrap is designed to be emptied by hand so it can be easily cleaned by site owners or maintenance crew without the need for vacuum inductor trucks ( unless this is how you chose to maintain) or heavy lifting equipment. As most catch basins can be accessed from ground level, there is no requirement for confined space entry, reducing maintenance costs.
Lift basket out of catch basin using handles
Tip the contents out of basket into suitable receptacle for contents
Place the basket securely back into surrounding frame, ensuring a good seal
LittaTrap filters should be inspected periodically to determine maintenance frequency. The frequency of maintenance services should be reviewed at the completion of each clean and modified if pollutant loadings deem this necessary. At the required maintenance interval the contaminants need to be removed from the filterbags and disposed of appropriately. The maintenance crew is responsible for the disposal of debris in accordance with all applicable regulations and is responsible for following all Health and Safety requirements.
"SWIMS has a lot of experience in installing trash control devices in California, and we like the flexibility of the LittaTrap design and ease of installation.”
Between June-December 2019, the LittaTrap unit caught a total of 473 gross pollutants. Almost 60 percent of all pollutants were cigarettes.