Resources

Canadian Sizing Tool: Separators & Filter

Use this tool to size Downstream Defender® and First Defense® stormwater separators as well as the Up-Flo® Filter system. 

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Tool
VDOT MTD Approval

VDOT approved stormwater treatment systems 

Manual
Maintenance: The Dirty Secret of the Stormwater Treatment Industry

Why aren't stormwater BMPs regularly maintained? Read our ebook to find out.

Resource
Services & Maintenance Brochure

Regular stormwater treatment system maintenance is essential for optimal system performance. Get the brochure to learn more.

Brochure
Downstream Defender DWG Drawings

Downstream Defender® DWG drawings. Imperial units. For use with projects in the Americas.

Drawing
Downstream Defender PDF Drawings

Downstream Defender® PDF drawings. Imperial units. For use with projects in the Americas.

Drawing