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Apply the latest ARR updates with the new Watercom Climate Change Rainfall Modifier.

Seen the new updates to ARR? Apply the latest climate change science to your models using the new Watercom Climate Change Rainfall Modifier!  

Own a USB Licence?

Exchange it for Perpetual Licences!

Based on your existing USB, get up to THREE Perpetual Standalone Licences at no additional cost! Plus up to $15,000 in discounts.

Each Perpetual Licence includes ALL current DRAINS features & functionality.

Calculate Instant OfferSee Examples of Trade-In Offers

Why trade-in a USB for Perpetual Licences?

Access all DRAINS features

All Perpetual Licences include the Full Unsteady Hydraulic and Storage Network Routing Models.

Triple the licences (at minimum!)

Get triple the Perpetual Licences for each Standalone USB trade-in, and at least double for each Network USB.

More affordable than USBs

Lower upfront and ongoing costs for Perpetual Licences.

More Flexible

Perpetual Licences come in 20, 50 & Unlimited-Links options.

Less IT overhead

Automated licence updates and renewals - no need for a USB. Instead, licences are "software-locked" to registered devices.

Frequently Asked Questions

Why should I exchange my USB Licence for a Perpetual Licence?

The new Perpetual Licences are fully-featured, more flexible, and have lower upfront costs and maintenance fees – plus they don’t require a USB Dongle. Licences are “software-locked” to registered devices.

  • More flexibility: Available in 20, 50 & Unlimited Links
  • Fully-featured: All current features are included
  • Lower upfront and ongoing costs
  • No USB required means there is no risk of damage or loss
  • Less IT overhead with automatic annual renewals

What is a USB Licence?

It’s a traditional licence where DRAINS is accessed with a USB Dongle. Learn more about licensing options here.

What is the new Perpetual Licence?

It is a Perpetual Licence with more features, more flexibility and lower upfront costs than a USB Licence. Available in both Standalone and Network, Perpetual Licences are “software-locked” to registered devices. Learn more about licensing options here.

I still have questions!

Sure! The best way for us to help is for you to complete the above form – it’ll take 2 minutes and will tell us about your current situation. From there, simply respond to our email with any questions you have! Alternatively, you can request a quote and mention that you are interested in trading-in your USB.