Retention/Detention Calculator

The Prinsco Retention/ Detention calculator was developed to assist you with the design of underground storm water storage systems using Prinsco product. The Excel based spreadsheet allows you to enter the calculated storage volume and footprint and helps you to determine an efficient system size to meet the requirements. This tool is free and is updated periodically so please check back for updates and enhancements.

Note: This Excel spreadsheet includes macros which may require the file to be downloaded to function properly. Also, the security settings may need to be modified within Excel. Learn More.

Download the Excel file here.