Behind a closed door, a Go-Pro camera captured the mysterious mechanics of Mr. Clean’s biggest foe: the dishwasher.

The Huffington Post reports that in pristine Hero 3 Go-Pro footage — which was uploaded to YouTube in 2013 and is winning new attention this week YouTube user Bito solves the mystery of what really goes on inside those cleaning behemoths.

It’s pretty much what you’d expect: Rinse, wash, repeat. But, it’s a fascinating glimpse inside a water world we humans will never set foot inside.

Watch as a small hose rises in the center of the appliance and spews out water with increasing vigor, similar to a sprinkler. Things get particularly wild around the 2-minute mark.

Watch the video:

Inside your dishwasher

PRP