No idea whats going or why I watched the entire thing. Don't even own a boat.It would be nice to have a diagram showing how all this works together, the title doesn't really make any sense.The public should be made aware of just how difficult and how great a job these folks and companies are doing keeping our tanks filled and our homes heated etc .Boy!!!! The equipment sure changed since the days of the pelican hook and the buoys with cross trees on them.thole pins were straight up and down.