· Spider Crabs can just f*ck off
:frown:So for an example, an object weighing 1000kg with a volume of 700L is sunk in fresh water at 30m.
What size lifting bag would be required to make it neutral?
What volume of gas would be required to fill the bag at that depth?
If you have a 12L cylinder with you for lifting the object, what pressure would it need to have to contain enough gas to do the lift?
Sorry if all that is useless but it was interesting for me
Can't I just get a reeeaaaallllyy big liftbag, fill it from a 15l pumped to 250 bar and hope for the best?
Or get lots of divers to each grab hold and fin really hard?