Not my picture, but this is part of my job. I'm not a labourer though. I make sure the pipe doesn't rust. I get to stay clean and in my truck for 8 or 9 hours of a 10 or 12 hour shift most of the time on construction jobs.
Then, installing, maintaining and trouble these are another big part of my job. Usually spend 5 hours in my truck, then work on these for another 5 or 6
And, the biggest part of my job, being on a pipeline right of way, usually in the middle of butt fuck no where. Usually doing this 10-14 hours a day