What is the 120 rule in scuba diving?
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. While recreational divers may venture 30+ feet underwater and employ a method of slow ascent to prevent decompression sickness, the world of saturation diving is a different ball game. These professionals often work at staggering depths, sometimes reaching up to 1,000 feet.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).It takes training, practice, and discipline. Deep diving is defined as a dive that exceeds 60 feet (18. That means that most people can dive up to a maximum of 60 feet safely. For most swimmers, a depth of 20 feet (6.
What is the 1/3 rule in diving?
The 1/3 rule, also called the Rule of Thirds, states that you should use one-third of your air supply to descend into the water, one-third for the actual dive, and save one-third for your ascent back to the surface. The Rule of Thirds is a guideline used by scuba divers to manage their air supply effectively throughout a dive. It involves mentally dividing one’s breathing gas supply into three equal parts. One-third for the outward journey, one-third for the return journey, and one-third as a reserve or emergency supply.
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 only thing for certain is that the optimum breathing strategy when scuba diving is deep slow breathing. You need to inhale slowly and then also exhale slowly without holding your breath.Drowning is the most common cause of scuba diving deaths. Divers drown due to running out of air, panic, lack of training, unrelated health problems that cause unconsciousness and equipment failure. As you know humans are built to breathe only air. Inhaling water can become deadly very quick.On the deepest working dives, at depths greater than 600 m, ambient pressure is greater than 6100 kPa and the divers breathe gas mixtures containing about 2% oxygen to avoid acute oxygen toxicity.
Who is not allowed to scuba dive?
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. The Rules of Scuba Diving: Never Hold Your Breath. Plan Your Dive. Dive Within Your Limits. Ascend Slowly (and Don’t Forget Your Safety Stop) Check Your Gear.