Why do they always shut off the valves on a submarine when they spring a leak?!
Question: It seams like whenever I watch a movie or show about old submarines, they start leaking when they dive into deep water. And someone always shuts off some conveniently placed valve and presto, problem solved. What I'm wondering is how this doesn't create a big problem somewhere else. I would think that the pipe with water in it is there for a reason and shutting off the valve would disable some other function. Thx for your time
Answers: It seams like whenever I watch a movie or show about old submarines, they start leaking when they dive into deep water. And someone always shuts off some conveniently placed valve and presto, problem solved. What I'm wondering is how this doesn't create a big problem somewhere else. I would think that the pipe with water in it is there for a reason and shutting off the valve would disable some other function. Thx for your time
They are tightening valves.
Remember with the pressure valves expand and contract and get a little twisted out of shape - causing the water to pour in - and not just water, also fuel, hydraulics and other stuff.
So they need to retighten stuff.
They don't shut off the valvue usually, just tighten the weak points in the piping - which happens to be near the valves.