If you have a commercial site and its water source has salts and minerals that need to be removed, you can use a commercial water desalination solution. You can trust the model you get if you perform a couple of actions.
Find a Solution That's Consistently Reliable
If you plan on creating drinking water from saltwater sources, then you need to get a commercial water desalination system that's consistently reliable. You can't take any chances with salts and other minerals being left over because then someone could get sick or worse.