Patch Steam Pipes is a quest given when Mickey enters Slalom.
Once Mickey either puts in two additional gears or breaks the gear set up by Gremlin Tiestow, Gus will notice that the steam is escaping the pipes and suggests to paint them back in.
Good Path
If Mickey manages to paint in all of the pipes, Tiestow will open the way to the Tunnels artwork.
Bad Path
If Mickey does not paint in all of the pipes, steam will occasionally shoot out of the pipes in front of the door leading to the Ticket Booth.
Gallery
Painting