Continuity mistake: During the structure fire, when Roy walks into the burning house his SCBA cylinder has a large arrow sticker on it, but when he's in the house searching for the boy it's a completely different tank with two red stickers, then when Roy goes upstairs it's back to the original tank.
Visible crew/equipment: When Squad 51 is dispatched to an 'unknown type rescue', after stopping at the side of the road to talk to the two guys, when the squad follows the motorbike, the corner of the crew's reflector screen becomes visible as the squad pulls onto the road and drives off.
Visible crew/equipment: After rescuing the man from under the engine, when Roy and Johnny load him into the ambulance, the reflections of the array set lighting are visible on the ambulance windows, as Johnny and Roy close the back doors.
Visible crew/equipment: When Roy and John are at the bull corral, trying to rescue the guy who's been gored, in the closeups of the bull we can see metal piping at the top, right corner of the screen, as the camera moves.
Answer: It is standard practice to wet down driveways so that they stand out in a long shot.
stiiggy