When should a lift bag be used during object recovery?

Using a lift bag during object recovery is particularly important for heavier items such as those weighing more than 10 kilograms (22 pounds). This is because a lift bag is designed to assist divers in safely raising or transporting heavy objects to the surface. When the weight exceeds a certain threshold, the lift bag provides the necessary buoyancy and ensures that divers can manage the retrieval process safely, while also helping to avoid physical strain or injury.

In situations involving heavier objects, using a lift bag can also enhance control over the ascent, allowing for more maneuverability and stability as the item is raised. This is especially critical in underwater environments where buoyancy and proper handling can greatly impact safety.

Other scenarios, such as dealing with smaller items or those that are damaged, may not necessitate the use of a lift bag in the same way. Similarly, while low visibility conditions can pose challenges during recovery, they do not directly relate to the necessity of a lift bag for handling the object's weight. Thus, the proper use of a lift bag is closely linked to the object's weight to ensure effective and safe recovery techniques.