We are not code enforcement nor are we legal advisors, we are not endorsing or advising. So what are we doing? We are information geeks that like to do research. So read carefully, consider thoughtfully, then make your decisions.
Septic tanks just work. Who wants to think about it? But you will if you don't. You'll think about it and smell it and worse, see it. And then there is your garbage disposal unit...one more thing to consider. See what the experts say.
It may be a bit extreme for most of us, but the conditions they describe are things as an inspector we see a lot. So if we see it a lot, then someone out there has it, a lot. When you look at a house, be aware of these issues.