Getting your septic system inspected every few years will help to keep your system working properly and help identify potential problems before they turn into a "replace the system" scenario. Inspections can easily be completed when you have your tank pumped out every three to five years and should include both visual inspections of your system's primary components as well as a hydraulic test.
Have peace of mind knowing that you're not going to get stuck with an expensive surprise after closing on your new property. Septic system inspections are a quick, inexpensive way to ensure you're making an informed decision before closing on a new home.
A septic inspection is a safe way to ensure that even an "unknown" problem doesn't get in the way of a smooth closing or worse, turn into a legal battle after the fact.