My pipeline shakes and sounds like a sledgehammer striking the pipe when the pump starts and stops. What’s that noise?
What you’re describing is likely what is referred to as “water hammer” and it has to do with the changing velocity of the water inside the pipeline. Picture a game of baseball. The pitcher has thrown the ball. There is no sound until the ball hits the bat or the catcher’s mitt. Fast moving water in your pipeline is like the baseball—it makes little noise until it accelerates quickly or stops quickly (water hammer). When the moving water accelerates or stops, it applies a force to whatever it happens to hit. In your pipeline, if the high velocity water hammer hits a pipe fitting hard enough, it can actually burst the pipe.