The game looks super great and the submarine thing is a neat idea. It makes me think of this other game made during the jam: https://itch.io/jam/scream-jam-2023/rate/2330413
I think what you can learn from it is it has 3 different minigames for each problem that can happen. Gameplay wise, leaks, pipe leaks and fuse box breaking are no different and it can feel a bit repetitive. I find that pressing E and waiting for a bar to fill up is no big gameplay moment.
Now that being said, you accomplished a lot for a one person jam and everything works real good together! Actually well done!