Need help in Level 6 (Power Station)

[Penumbra]

Oh yeah, that took me a while to figure out, I kept trying to set the barrels on top of all the switches to hold them all in place.

You have to walk up the long pipe thing that the ball rolled down and then look down. There should be a metal beam that you can jump to. Haha, when I did that I wasn't actually thinking that it would solve anything at all, I just thought of it as a short cut back to the beggining.