Download of IrrLoc 1.0 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. IrrLoc lies within Development Tools, more precisely Help. The most popular version among IrrLoc users is 2.0. We recommend checking the downloaded files with any free antivirus. This free program was originally produced by Irritrol. You can launch this free PC software on Windows XP/Vista/7/10/11 32-bit.
From the developer:
Designing localized irrigation systems using drip lines requires sophisticated and specific analysis instruments, as the hydraulics of these pipes is extremely complex, especially if the drip lines or their feed manifolds are on a slope. The “IRRLOC 2.0” software allows quickly and easily assessing the result of the various design choices.
You may want to check out more software, such as ImageUltra Builder, MPT or wxDesigner, which might be similar to IrrLoc.