Yeah, this part of the game seems to be very bugged. That Locker 2 from your screenshot never opened for me too, even though all switches and pipes were set correctly (I double AND triple checked them all).

I still managed to beat the game thanks to ANOTHER bug: you get one of the "red fluid bottles" by killing the giant nurse that comes out of the tank in the middle of the room, but after i placed it on the door, i saved and reload and the nurse respawned and gave me ANOTHER "red fluid bottle", so i was able to unlock the door without ever opening that locker 2 (The Nurse tank seems to be bugged too, it seems to be linked to the switches and pipes in the ground too, but they were already all set for me, when i was triple checking them to try to open that locker 2, I disconnect a pipe in the ground and connected again and it randomly decided to work for the nurse tank)

Originally posted by afzero:

Yeah, this part of the game seems to be very bugged. That Locker 2 from your screenshot never opened for me too, even though all switches and pipes were set correctly (I double AND triple checked them all).

I still managed to beat the game thanks to ANOTHER bug: you get one of the "red fluid bottles" by killing the giant nurse that comes out of the tank in the middle of the room, but after i placed it on the door, i saved and reload and the nurse respawned and gave me ANOTHER "red fluid bottle", so i was able to unlock the door without ever opening that locker 2 (The Nurse tank seems to be bugged too, it seems to be linked to the switches and pipes in the ground too, but they were already all set for me, when i was triple checking them to try to open that locker 2, I disconnect a pipe in the ground and connected again and it randomly decided to work for the nurse tank)

Hello. Thank you for your help. I tried your method but unfortunately the giant nurse didn't respawn.
I solved this by clearing everything in one go, means that cannot save and load while solving the puzzles [don't touch anything except eliminates the nurses before your save]. At the end, all three lockers were showing green light.

Game breaking section right here. All of the bullets in the area have respawned to collect after reload. 3 Nurses respawn. The Tank nurse doesn't respawn. All switches are linked and I'm 3/4 red tubes to progress.

Whatever just happened, I'm past it now. I only had 1 save file, I saved to 3 slots. Reloading the saves would keep respawning the same set of nurses. Another reload on the 3rd save slot, the Tank nurse respawned. wth