Not gonna happen
I spent a career in the US Navy. Most of my junior time I was at sea. This included from time to time having to work on the in port "Emergency response team". Emergencies included fighting fires and flooding. There were multiple times where it took many people to close one of those (if they could at all).
The scene where Logan manages to close the massive hatch with water pouring through it leave too much to the imagination. The pressure cause by the weight of the water would make it impossible to close that hatch. ARNOLD couldn't close that hatch by himself let alone a much smaller man that had never been exposed to physical exertion doing it no matter how desperate he was.
I fully understand that we suspend imagination for movies like this and the opportunity did give Logan and Jessica a chance to avoid Francis for at least a little while.
It's simply a matter of physics though.
K/H D
If there's a way to screw something up, the "O'Commie regime" will find it EVERY SINGLE TIME!! Only 96 more days left!