I noticed this on my first playthrough:
If you flood chamber #1, go back to the previous part, then go to either chamber #1 or 2 and come back once more, you can access the next part without doing the second puzzle.
Video: https://www.youtube.com/watch?v=y7A4aA2fozg
I’m sorry if this has been posted, but I haven’t been able to find a post about it.