Get Downstream Defender® design guidelines for use on Nashville stormwater management projects.

The Downstream Defender® advanced hydrodynamic vortex separator has been approved by Nashville, TN Metro Water Services for pretreatment (50% TSS removal) of stormwater runoff. Use this manual to design Downstream Defender® systems for use on Nashville stormwater management projects.  

An online sizing tool is also available to assist engineers in design and specification.