What is the scuba 1/3 rule?
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. 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.It’s mainly for recreational divers using air, not Nitrox or other fancy gas mixes. Here’s how it works: Your max depth (in feet) + your bottom time (in minutes) should be less than or equal to 120. That’s it. So if you plan to dive to 60 feet, the rule says you shouldn’t stay down longer than 60 minutes.
What are the two golden rules when scuba diving?
If you had but 30 seconds to teach someone to scuba dive, what would you tell them? The same thing Mike did — the Golden Rule of scuba diving. Breathe normally; never hold your breath. The rest, in most cases, is pretty much secondary. The Rules of Scuba Diving: Never Hold Your Breath. Plan Your Dive. Dive Within Your Limits.The most frequent known root cause for diving fatalities is running out of, or low on, breathing gas, but the reasons for this are not specified, probably due to lack of data. Other factors cited include buoyancy control, entanglement or entrapment, rough water, equipment misuse or problems and emergency ascent.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.Individuals should not dive if they have cardiac disease that might result in incapacity underwater (e. IPO (e. DCS (e.
How expensive is it to get into scuba diving?
A scuba course can run anywhere from $399 through $1,000 depending on the dive shop/operator, the dive agency and the dive instructor. If you need to dive in very cold waters you might also need to add on a drysuit specialty, or a drysuit checkout. That should cost you less than the open water course. It largely depends on how often you get to dive. Buying a basic scuba gear set would cost around $300, and a complete scuba gear set would go up to $1000 or more. Renting a scuba gear unit would cost you less, at just $30, and it would be a better solution if you plan to dive only once a year or during a vacation.
What is the 120 rule in scuba diving?
Here’s how it works: Your max depth (in feet) + your bottom time (in minutes) should be less than or equal to 120. That’s it. So if you plan to dive to 60 feet, the rule says you shouldn’t stay down longer than 60 minutes. Subtract the depth you’re diving (in feet) from 120. The resulting number is the maximum amount of minutes you should spend at that depth.