The old foot is traded for the new, and it gets the same treatment. He doubts that he will ever get all of the dirt off, but no one would believe that they belong in the underground if they were completely clean anyway.

"Well..." He shrugs, but his face is still full with half a grin, "I may have, once or twice."

Soon, the work is done. Phalanx is, technically, clean. Robin reaches down to pull a stopper out of the drain, and the water starts burbling away down some pipes into the network of water systems lacing the whole city.

"All right, all done. Time to dry you off."