If you hear something sloshing inside a scuba cylinder, what should you do?

If you hear something sloshing inside a scuba cylinder, the appropriate action is to have it visually inspected. This is crucial because a sloshing sound may indicate that there is residual liquid inside the cylinder, which could be water or another contaminant. Such substances can lead to various issues, including corrosion, equipment damage, or dangerous situations during a dive. Visual inspection by a qualified technician helps assess the condition of the cylinder and ensures that it is safe for use.

Addressing the possibility of shaking the cylinder may seem tempting to determine if anything is loose, but this can lead to potential damage and does not provide a clear assessment of the condition inside. Filling it with air despite hearing sloshing could compromise the integrity of the equipment and pose safety risks. Finally, using the cylinder for a dive without addressing these concerns would not only be unwise but could endanger the diver's safety. Prioritizing inspection maintains standards for safe diving practices and ensures reliable equipment usage.