Downstream Defender Sizing Calculator Overview

Find the Best Downstream Defender Size for Your Site

4-ft Diameter Downstream Defender

It is as simple as entering a Water Quality Flow Rate and selecting a Sizing Method from a drop down list.

Determine the Best Arrangement for Your Site

Enter simple values such as peak flow rate and the diameter of the storm drain pipe to determine if an Online Arrangement or Offline Arrangement best suits your site.

Offline Downstream DefenderOnline Downstream Defender

Obtain General or Detailed Arrangement Drawings

Click Get GA to download a standard General Arrangement drawing, or enter site-specific elevations for the storm drain and surface elevation for Detailed Arrangement drawings.

Download a Written Specification

Use the Download Specification option to obtain a written spec in Microsoft Word format when one is needed for your project.

Download a Project Summary

Click Download Project Summary for a PDF that lists details of all Downstream Defender devices on your project.

Submit Project for a Design Review and Pricing

When you have finished selecting Downstream Defenders for your project, Submit for a Design Review and Pricing. A project support representative will follow up with you shortly.

Coming Soon

Watch for these additional functions and features.

Watch for Additional Features Coming SoonBypass Weir Height and Length Calculator for Offline

Arrangements

Net Annual Sizing Method using Local Rainfall Data

Hydrology calculator to calculate Water Quality Flow Rate

Option of working in SI units

Increased ability to EDIT saved projects.

Submit requests for additional features at http://ci25.actonsoftware.com/acton/form/2795/000c:d-0001/1/index.htm