What is the recommended maximum rate for descending under water?

The recommended maximum rate for descending underwater is 30 feet per minute. This rate is advised to allow divers sufficient time to equalize pressure in their ears and sinuses, helping to prevent barotrauma. Descending too quickly can lead to discomfort or injury due to the rapid increase in pressure.

While some divers may feel comfortable descending at a faster rate, safety agencies emphasize a more cautious approach to ensure the wellbeing of all divers. The other rates provided, such as 45 feet, 60 feet, and 75 feet per minute, exceed these safety recommendations and could considerably increase the risk of pressure-related injuries. Therefore, adhering to the guideline of 30 feet per minute maintains safety during descent and helps divers acclimate to the changing pressures underwater.