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Scuba
S.C.U.B.A. = Self Contained Underwater Breathing Apparatus. Here is all the information you need to learn and be safe while enjoying this great sport. Explore the last frontier and uncharted depths in the S.C.U.B.A. category.
999 Questions
How deep can go scuba diver with breast implants?
Implants do not affect the ability of a diver to descend deep.
What can a scuba diver purchase from the Air Hog online shop?
A scuba diver can purchase many things for scuba diving at the Air Hog online shop. They can purchase dive knives, dive lights, dive computers, and dive bags which will help them in scuba diving.
Is scuba diving a good way to explore a ocean trench?
No.
Ocean trenches are deep, really deep. Scuba equipment won't let you dive anywhere near deep enough.
Many people use a SCUBA suit for diving. Sport divers, police divers and some Navy recovery divers.
Why do scuba divers not get crushed by the weight of water when they are diving?
They do not dive deep enough.
Where can one purchase a scuba regulator online?
Scuba regulators, also called 'diving regulators', are vital for scuba divers to properly obtain oxygen from a tank. Regulators are available for purchase through diving specialty stores such as Prime Scuba, House of Scuba, and Divers Direct.
How much do scuba diving regulators weigh?
For bouyancy calculations, most regulators are assumed to weigh about 4 lbs.
For recreational divers, they only carry one regulator, but technical divers may carry four (or more!) regulators on their doubles and various stage tanks.
Why only oxygen is not used in tanks of scuba divers?
Naturally the air we breath has 70% of nitrogen and only 21% of oxygen, this is done is scuba diving as well. Just oxygen is not enough for living, while oxygen is essential one.
Mixture of gases for scuba diving tanks compared to normal atmospheric air?
Most SCUBA divers dive with compressed air, which is normal atmospheric air compressed into a scuba tank.
What is Deep-sea diving record for a human?
The Deepest Open Circuit Scuba Dive (unofficial) is that of 330m set by Pascal Bernabe July 5th 2005 off Corsica - It took Pascal, 10 minutes to descend down to 330 meters but it took him 8 hours and 49 min to resurface
Nuno Gomes officially (Guinness world record) holds the World's Deepest Open Circuit Scuba Record at 318.25m on the 10th June 2005 in Dahab, Egypt.
The Deepest official Open Circuit Scuba dive performed by a woman is of 221m set by Verna van Schaik from South Africa in October 2004.
Can you scuba dive to 6000 ft?
220 feet is about 67 metres. The pressure of air at this depth is about 8 bar (or atm). Using standard air the partial pressure (20%) of oxygen is 1.6 bar. This is the boundary where oxygen begins to become toxic and can cause serious health problems (and lead to death).
I am a diver with BSAC and the recommended maximum depth is 50m on air which is about 164 feet.
The alternative is to use other mixes of gas which usually require more advance training but they contain less oxygen so it is safer to diver deeper.
Summary, it is NOT safe to dive to 200ft on standard air
Is it safe to go SCUBA diving in the Bahamas during November?
Looks like it is most of the time. One thing to keep in mind is that November is still hurricane season, so if a hurricane is nearby, SCUBA diving is impossible.
It is going to be as safe as any other time going SCUBA diving. One particular month does not make SCUBA diving dangerous. As long as your guide knows what their doing, you will be fine.
When scuba diving why do you have to come up slowly?
Two main reasons:
- avoiding the risk of lung expansion injuries, and
- reducing the risk of decompression sickness.
What Depth should a scuba diver dive?
It's not recommended for a sport diver to go below 130 feet due to the partial pressure of oxygen being poisonous when it reaches the equivelant of 100% (5 atmospheres as there is about 20% oxygen in the air). Also the effect of Nitrogen narcosis can make your decision making erratic. It's not an exact science as to what depth an individual may succumb to this but 130 feet is a good guage of where you are relatively safe as long as you are obeying all the rules of training and you and your buddy are not irresponsible. Any deeper and you would need to mix gases and should get more specialised training.
How do humans breathe in diving suits?
just breathe normally through your mouth just keep your head down or it will fill with water! swim on the surface and when you lift you head out of the water makesure that your snorkel has not filled with water before you try to breathe through it again!! have fun ---- I like to "sip" the air over my tongue. It seems to trap droplettes moer effectively. Nice not to aspirate :} Actually, this answer is incorrect. When snorkelling, you take a deep breath, dive down and as u reach the surface u blast the water in the snorkel out and repeat the process. If you are jus swimming on the surface it is not technically snorkelling, but some people like to call it skin diving to clarify. Or -- as you ascend, you can point the snorkel straight back so it's entirely vertical and puff a little air into it at depth. As you ascend, the air in the snorkel will expand, forcing water out. Just as you hit the surface, vigorously rotate your head foprwards and downwards, so the snorkel moves roughly 1890 degrees and the opening is now in the air, nearly vertical. Blast a little air out to remove the tiny amount of water remaining. Also, I think the act of "snorkelling" refers to whatever you choose to do from the time you leave the boat until the time you leave the water. So this would include phases when you're breathing on the surface, diving to depth, holding your breath underwater, clearing your snorkel, etc.
Actually, 5 ATM can either be 132 feet or 165 feet. We all have 1 ATM above us (the air/sky/atmosphere) that creates a constant pressure.
Sooo.. 1 ATM + 4 ATM (33ft per ATM) = 132 feet underwater. However, if you actually mean 5 ATM UNDERWATER, then it would be 6 ATM (1 ATM + 5 ATM underwater) for the equation which would equal 165 feet.
Hope this helps!
Why was the scuba diving suit invented?
So that the scuba diver could go more streamline in the water.
How much to hydro test a scuba tank?
typically around $20-$30 depending on where you get it done, just ask around for the best price. also check the local fire station, a lot of times they know where to get it done cheap since they have to get tanks hydroed all the time
How much weights a scuba diver needs to dive in the ocean?
The fine-tuning is a judgment call. Some prefer to be able to just exhale and drop and carry an extra pound or so to do so. Others feel that not carrying the extra pound is worth possibly needing to do a surface dive to get down to a level where the wetsuit compresses enough to make you neutrally buoyant. Note that if you are too light you risk not being able to do a safety stop in shallow water with an almost empty tank. A full tank can be as much as 6 lbs heavier than an empty one.
Depending on the tank, the suit you wear, and your body type, weights could range from 0 to 40 lbs of lead. A medium build person with a 5-7mm suit diving an aluminum 80 cf tank may average 20-25 lbs of lead in salt water. The difference between lead needed for salt or fresh water can be almost 6 lbs.
How do scuba divers keep from floating to the surface of the water?
The Marines have a special kind of SCUBA system (called a re-breather) that recycles the air for them, which prevents the bubbles from being seen from enemy sights. In recreational diving however, we only have a semi-closed re-breather, which partially recycles the air. It does not completely eliminate the bubbles, but it reduces them.
Do scuba divers breath pure oxygen?
Believe it or not, we can die from too little oxygen AND too much oxygen.
This concept involves partial pressures.
If we first consider using standard air (i.e. 20% Oxygen and 80% Nitrogen):
(1 bar = 1 kilogram of pressure per square centimetre)
At the surface - Total Pressure of air = 1 bar
- Pressure of Oxygen = 0.2 bar
- Pressure of Nitrogen = 0.8 bar
At 10m - Total Pressure of air = 2 bar
- Pressure of Oxygen = 0.4 bar
- Pressure of Nitrogen = 1.6 bar
At 20m - Total Pressure of air = 3 bar
- Pressure of Oxygen = 0.6 bar
- Pressure of Nitrogen = 2.4 bar
At 30m - Total Pressure of air = 4 bar
- Pressure of Oxygen = 0.8 bar
- Pressure of Nitrogen = 3.2 bar
At 40m - Total Pressure of air = 5 bar
- Pressure of Oxygen = 1.0 bar
- Pressure of Nitrogen = 4.0 bar
At 50m - Total Pressure of air = 6 bar
- Pressure of Oxygen = 1.2 bar
- Pressure of Nitrogen = 4.8 bar
At 60m - Total Pressure of air = 7 bar
- Pressure of Oxygen = 1.4 bar
- Pressure of Nitrogen = 5.6 bar
At 70m - Total Pressure of air = 8 bar
- Pressure of Oxygen = 1.6 bar
- Pressure of Nitrogen = 6.4 bar
It is at the partial pressure of 1.6 bar (which occurs at 70m where oxygen becomes toxic. That is why most dive organisations recommend 50m as a maximum for recreational diving.
However, if pure oxygen is used:
At surface - Pressure of Oxygen = 1 bar
At 10m - Pressure of oxygen = 2 bar
The oxygen has already become toxic!
Hope that answers your question. The concept is called "partial pressures" and "oxygen toxicity" if you want to research more on a search engine.
