The Dalton claims another truck!
Jack calls this kind of trailer a bulker. It carries dry powders like concrete, sand, or ammonium nitrate. This one probably carried concrete or sand. He says they use air to transfer the product from one place to another. Unloading a bulker is called “blowing it off” to the people who do it. In Prudhoe they store the product in silos.
Don’t forget you can increase the resolution on a YouTube video by clicking on the settings symbol in the lower right hand corner and choosing a higher number than what YouTube picked for you.