Visible crew/equipment: Crew member visible in the lower left corner operating "Hector Savage" when he is swelling up with the water. (00:47:50)
Visible crew/equipment: When Nordberg gets stuck under Frank's car, they take off. The camera and a film equipment are visible in the window.
Answer: Frank stuck a fire hose in his mouth and turned it on, causing Savage to explode.
Brian Katcher
Why couldn't Savage just remove the fire hose, especially when he began inflating with the water? Plus, how could water possibly be spraying from his chest?
Because this a ridiculous parody movie and it's funny.
LorgSkyegon