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EOFY SALE! Get up to 50% off New DRAINS Subscriptions, Licences, Upgrades & Training!  

A new version of DRAINS has been released:

v2022.09 – 16 September 2022

We’ve been hard at work updating DRAINS, improving current features and laying foundations for exciting functionality and expansions to come.

Download the new version now.

Release Notes:


  • Network communication error feedback.
  • Extra Pre-run checks.
  • Option to display the Release Notes after installing DRAINS.


  • Improved the storing of results for full storm ensembles.
  • Minor improvements to the User Interface.
  • DRAINS version format to Major, Minor, Build, Revision.
  • Licence error feedback.
  • Minimum Detention Basin Area to 0.1.
  • Run Log Information, Warnings for Channel and Overflow Route Spills.
  • DRAINS Upgrade text.
  • Improvements to the Licence Server Reporting.
  • Updated the installation software.
  • Updated the Run Log text.


  • Continuing Loss limit for IL CL Hydrological Model.
  • Minimum hydraulic analysis Time Step limit in the Project Options.


  • Possible crash when saving storm results.