I found this at my last inspection. It was a pit in the concrete floor of a garage. The relatively cubic shaped pit was lined with sheet metal. It had a sheet metal lid as a cover and a concrete lid with handles to cover it all up. Inside the pit was a metal bucket bolted to the bottom of the metal liner. The bucket had a hinged lid with a hasp. There was a little moisture in the bucket and the metal box, with some corrosion. There was no obvious drain or plumbing associated with it. The home had been vacant for about a year and a half. Has anyone seen anything like this? I wrote it up as an unexplained storage pit, and recommended that the former owner explain it and warrant that no hazardous materials were present.