Wedge the watertight doors open, disable the salvage eductors and you can sink a ship by cracking a single sea water intake pipe open. I'm on mobile so I can't

Wedge the watertight doors open, disable the salvage eductors and you can sink a ship by cracking a single sea water intake pipe open. I'm on mobile so I can't provide a link, but look up the Argentinian Type 42 sunk in harbour or HMS Endurance for examples.