A Plumbing We Will Go (1940)
To escape the police, the stooges pose as plumbers and are hired to fix a leak in a fancy mansion. They wind up crossing the electrical system with the plumbing and generally ruin the place. One memorable scene has the lady of the house tuning into a television broadcast from Niagara Falls as a torrent of water pours from the set. To escape the wrath of the homeowners the stooges escape through a magicians trap door.