Download of AQTESOLV 4.5 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. The most popular version among AQTESOLV users is 4.5. The software lies within Education Tools, more precisely Science Tools. The program's installer is commonly called Aqtw32.exe. This software is an intellectual property of HydroSOLVE, Inc. We recommend checking the downloaded files with any free antivirus.
From the developer:
AQTESOLV is the original, all-in-one software package for the analysis of pumping tests, slug tests and constant-head tests. Choose AQTESOLV to get the most advanced tools at an affordable price.
AQTESOLV is available in Standard and Pro versions.
Choose the Standard version for a basic set of aquifer test solutions comparable to other commercially available software packages.
You may want to check out more software, such as QPlot, GenealogyJ or Lapackpp, which might be related to AQTESOLV.