Yesterday, I saw a truck pulling a large trailer load of 'stuff' to a house in my neighborhood. The 'stuff' was long, probably about 16', rolls of blue and white substance that looked to be about the size of baseballs. In the center of the rolls was a pipe, maybe 6" in diameter. The rolls were maybe 18" in diameter. I have never seen anything like this. It parked in the yard of a completed house. There was a backhoe there also. So, I'm guessing, maybe some type of new drain field piping for the septic system. But really dunno.