What is the 120 rule in scuba diving?

What is the 120 rule in scuba diving?

The 120 Rule in Diving Here’s how it works: the sum of your depth (in feet) and your no-decompression limit (NDL) time (in minutes) should not exceed 120. For example, if you’re planning to dive at 60 feet, your NDL would be 60 minutes (60 + 60 = 120). This rule helps ensure you stay within safe limits. The 120 Rule is a quick mental math tool recreational divers use, mainly for planning repeat dives in a single day within moderate depths. Its core is simple arithmetic: for any single planned dive, your maximum depth in feet plus your planned maximum bottom time in minutes should ideally equal 120 or less.In technical diving, the 1/3 Rule ensures divers have enough gas for the descent, return, and emergencies. It divides the total gas supply into three parts: one-third for the descent and exploration, one-third for the return, and one-third as a reserve, enhancing safety in challenging environments.The 120 Rule is a quick mental math tool recreational divers use, mainly for planning repeat dives in a single day within moderate depths. Its core is simple arithmetic: for any single planned dive, your maximum depth in feet plus your planned maximum bottom time in minutes should ideally equal 120 or less.

What are the two golden rules when scuba diving?

The Rules of Scuba Diving: Never Hold Your Breath. Plan Your Dive. Dive Within Your Limits. The Rules of Scuba Diving: Never Hold Your Breath. Plan Your Dive. Dive Within Your Limits.Never hold your breath. This is undoubtedly by far the most crucial of all safety rules for diving because failure to adhere could result in fatality. If you hold your breath underwater at the depths at which scuba divers reach then the fluctuating pressure of air in your lungs can rupture the lung walls.A person with heart trouble, a current cold or congestion or who has epilepsy, asthma, a serious medical problem, or who is under the influence of alcohol or drugs, should not dive.Scuba diving is a sport with exhilaration, beauty, and fascination; however, the risks involved are often not advertised. Two specific conditions can turn a fantastic dive into trouble, with occasional fatal outcomes: Decompression Sickness and Pulmonary Overinflation Syndrome.

Can humans dive to 2000 feet?

Most recreational divers rarely dive deeper than 130 feet. But commercial divers can use atmospheric suits to descend to depths up to 2,000 feet. Some recreational divers have descended to depths of 1,000 feet and beyond and survived the experience without any problems. Technical diving is a more complex, and challenging, form of scuba diving. Technical divers rely on specialized training, equipment, and mixed gases to safely descend beyond the recreational limit to depths that can exceed 90 meters (300 feet).Conclusion: In conclusion, scuba diving is undeniably a thrilling and rewarding hobby, but it does come with a notable price tag. The initial investment in training and basic gear, coupled with ongoing maintenance, travel expenses, and additional certifications, can make scuba diving a relatively expensive pursuit.It is totally wrong saying that Snorkeling is easier than Scuba Diving, but Snorkeling requires more advanced water-surface skills, while scuba diving requires underwater buoyancy-control-device skills and knowledge for safety, scuba divers descend or ascend by pressing a button, snorkelers descend or ascend by using .

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