CADIX Software

The CADIX program (Computer Assisted Design for Ion eXchange) is a comprehensive ion exchange engineering tool for system design and evaluation of existing plant performance. CADIX allows design of both co-flow and counter-flow regenerated systems for softener and demineralization applications using DOWEX™ ion exchange resins.

CADIX allows an economic comparison of co-current and counter-current regeneration for your particular system. CADIX also provides details on the benefits of the UPCORE™ counter-current regeneration system for your plant.

CADIX 6.2 is now available for download with the same features as version 6.1, including easier navigation and increased flexibility in making plant designs. CADIX 6.2 has been updated for more optimum installation with the WINDOWS® 7 operating system. As the technical content of the program is unchanged, CADIX 6.1 users do not need to convert to CADIX 6.2 at this time.

Download CADIX Software

Download CADIX version 6.2 (March 12, 2012)

Installation Instructions: Detailed instruction on how to install CADIX

How to use CADIX: Practical guidelines on using CADIX 6.2

For WINDOWS® 7 users, a Microsoft® update (msu) is required in order to install the CADIX Help file:

Update for 32-bit WINDOWS 7 operating systems

Update for 64-bit WINDOWS 7 operating systems


Customers who currently purchase DOWEX resins are invited to register with us to obtain further design options such as dealkalization, nitrate removal, condensate polishing, and RO permeate mixed bed. To obtain a keycode for these advanced features, please contact us.


Answer Center for download support on CADIX.