I have never been able to figure that room out. However, I've also won the game many times. It's not a room you need worry about.
When you get to the room with the floating droids and the water that can hurt you, DO NOT JUMP DOWN!!! instead, go right along the trimming near the ceiling. You'll see a control room, eventually, guarded by a stormtrooper and an officer, I believe. Kill them, then use the bryar on the exploding crate. The crate will explode, causing a ramp to open up that lets you skip that room altogether.
Let me know if you need to see screenshots to understand this. It's not easy to type out in words.