Frequently Asked Questions The home I’m thinking of buying is only three years old, should I have the system inspected? Usually, unless there is a very recent service receipt with a clean bill of health, and a very accurate “as built” plan of the system. Buyers get a great overview of not only the system’s condition, but also location, during an inspection. Septic tanks should be serviced within three years anyway, so a thorough look at that time would be a good idea. Return to FAQ's