Enhanced sizing tools for Ontario engineers

We have released our newest sizing calculator for the First Defense® High Capacity and the Downstream Defender® vortex stormwater separators.

Engineers specifying stormwater treatment systems will now have more sizing tool options available to them - and more variety means more site flexibility. 

We are pleased to announce the release of our newest sizing calculator for the First Defense® High Capacity and the Downstream Defender® vortex stormwater separators, used for the removal of trash and sediment from stormwater. This new tool will allow engineers to size, configure and generate drawings for treatment systems by entering site-specific information such as:

  • Net annual rainfall
  • Flow rate
  • TSS (Total Suspended Solids) size for removal

Numerous Downstream Defender® and First Defense® units have been installed in Ontario and other parts of Canada since the very first Downstream Defender® was placed in the ground in Belleville, ON in 1996. Since then, these units have become some of the most popular in North America by offering high treatment quality and long-term dependability in a small footprint.

"Engineers are headed into their busy planning season. We want to make it easy for them to find a system that best fits their specification and this tool will do that.”

- Phil Taylor, Stormwater Treatment Specialist and tool designer

You can download the Canada-specific sizing tool immediately by clicking here. If you have any questions about the calculator please contact us.

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