Nice video. What is it with these crews that they let the locos blow off so much? On some lines letting the safety valves blow is a no-no as it's so noisy: you try to balance the boiler pressure against the fire and the water level to maintain good pressure but stay below the red line.
![GEEK TIMË [OFFICIAL AUDIO]](http://i.ytimg.com/vi/ry-6RvkH880/mqdefault.jpg)
Nice video.
What is it with these crews that they let the locos blow off so much? On some lines letting the safety valves blow is a no-no as it's so noisy: you try to balance the boiler pressure against the fire and the water level to maintain good pressure but stay below the red line.