During production, over 500 gallons of fake blood were used for special effects production. For the blood geyser sequence, the filmmakers used the same revolving room set that was used for Tina's death. While filming the scenes, the cameraman and Craven himself were mounted in fixed seats taken from a Datsun B-210 car while the set rotated. The film crew inverted the set and attached the camera so that it looked like the room was right side up, then they poured the red water into the room. They used dyed water because the special effects blood did not have the right look for a geyser. During filming of this scene, the red water poured out in an unexpected way and caused the rotating room to spin. Much of the water spilled out of the bedroom window covering Craven and Langenkamp. Earth's gravity was also used to film another take for the TV version in which a skeleton shoots out from the hollowed out bed and smashes into the "ceiling".