What is John Stack Looking For in Rayman’s Back Yard [VIDEO]

If you should see Chief Sewer Engineer John Stack wandering around with Jim Dawson in your yard the next couple of days, don't worry, there not looking for buried treasure. John and Jim are checking certain sewers in low lying areas in Lake Nebagagamon. They stopped by our home this morning, and I asked John to explain, and he does in the video.