I'm trying to find a pair of stories I'm pretty sure are by Arthur C. Clarke, but may be by Asimov. [Isn't it strange that it always the full name Arthur C. Clarke, but it is usually just Asimov]
Anyway, there has been a wreck in space and there are only three survivors. They find a way to save themselves by punching a hole in a water tank and using the water turning into steam propel their piece of wreckage to safety.