Great news. I bought a house and the septic tank passed an inspection. A few months later something was bothering me. My spidey sense was tingling. I called out someone to check the septic tank. They pulled off the cement cap and the 1940 brick and mortar wall of the septic tank moved 3 inches. Oh, and there was an inch between the water and the cap.

That hunch paid off. Disaster avoided. $7000 later I had a new septic tank and I had them put in a new leach field into the front yard instead of the back yard for livestock reasons.

The lesson here is that this whole situation can be fixed for less than $10,000. It worked for me so it has to work for the whole internet, right?