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Downspout Filtration  
CleanWay | Catch Basin Filtration Inserts
The CleanWay® Storm Clean® curb inlet filtration inserts are highly effective at capturing and removing pollutants from stormwater runoff. They can be used in curb inlets for direct capture at the source, as well as pretreatment for Underground Injection Controls (UIC), as secondary devices in treatment trains for protection of downstream devices such as swales, detention/retention ponds and infiltration trenches.

We offer several sizes and configurations in standard dimensions that fit into a wide range of existing structures. We also design Storm Clean curb inlet filtration inserts for new sites customized to your specifications.

Select from basic, advanced and maximum pollutant removal options to address your site specific needs. Flexible designs allow you to increase pollutant removal performance any time by adding additional filtration stages.

We work with you to determine the best solution for your site, making your life a little easier.

Easy Installation & Maintenance

Installation and maintenance are easy and no special tools are required. There’s no confined space entry. Plus, with our handy sampling port that’s unique in the industry, you can take samples any time to check system performance.

How curb inlet inserts work

The Storm Clean curb inlet filter is an insert consisting of three major components: the primary rigid strainer, the absorption media section, and the support assembly.
  1. A primary rigid strainer constructed of a perforated material with surface area that accommodates flows rated at 125% of the flow of the basin prior to installation.

  2. The absorption media section incorporates a flexible open mesh fabric envelope containing a specialized media blend. This envelope is suspended from the support assembly and fitted into the basin in such a way that all influent passes through it before exiting the filtration unit and entering the downstream conduit. The combination of gross solids removal via the strainer and the absorption / filtration function of the media section reduce TSS and other pollutants.

  3. The support structure is a one piece pan that installs between the grate and the concrete or steel grate frame. The pan provides support for the filter element and the rigid strainer as well as assuring that all water passes through the strainer and filter element. No tools are required to install the support pan.
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  • Easily retrofit existing curb inlets
  • Economical and effective treatment
  • High efficiency in a small footprint
  • Simple installation and maintenance
  • Available in standard sizes and configurations
  • Custom designs available
  • Easy access sample port to check performance
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