What does 4-4-4 pulls signal to the tender from the diver?

The signal of 4-4-4 pulls from the diver to the tender indicates a request to be hauled up immediately. This specific pattern of pulls, which consists of four consecutive pulls followed by a short pause and then repeating, is a universally recognized signal in diving communication. It serves to quickly alert the surface crew to the diver's urgent need to be lifted.

In underwater operations, where communication can be limited, having a clear and distinct signal is crucial for safety. When a diver pulls the line in this pattern, it effectively conveys the urgency of their situation, whether due to emerging danger or equipment failure, necessitating immediate ascent. This allows the tender to respond efficiently and prioritize the diver’s safety by initiating the ascent procedure.

Understanding this signaling system can be vital in ensuring divers are promptly and safely retrieved from the water, especially in critical scenarios.