solubility of air in water...increase pressure..increase temperature...both increase solubility. So upping the pressure and temperature removes air locks as it dissolves the air in water. It's also known as Henry's law of solubility. You over think things broYou don't seem to understand the difference between 'pressure', which does not affect the motion of bubbles, and 'pressure gradients', which do. In this context, Boyle's law tells you that as the pressure in the system water is increased the bubbles of trapped air shrink in volume.