Classic Sesame Street - Kermit and Grover the Plumber

From Season 7. Grover comes to Kermit's house to fix his sink. Kermit fills him in on a demonstration of "big, bigger and biggest" when it comes to wrenches. Even so, the sink repair goes awry, and the house floods. I believe this sketch was written by Judy Freudberg and directed by Jon Stone.