Years ago, I had trouble with my septic system. If you’ve ever had that kind of trouble, you know what kind of trouble it can be.

I was living in my old farmhouse out in the middle of the woods and had no idea where the sewage went until it suddenly went nowhere. That’s when I called the septic guy.

The house (and presumably the septic tank) was 100 years old, and I had never had occasion to get ove…