Ask yourself how deep you actually can dive before going after deep dive. The real question should be how deep the scuba divers can go without having any safety issues. It depends on various factors like personal tolerance during partial pressure of gasses, breathing gas, and experience level. Till now Ahmed Gabr holds the record of descending to the highest depth of 1,044 ft. on 18th Sep 2014.
How deep you can dive depends on the following factors which you must consider to follow:
1. Decompression Status For Deep Dive
The deeper the diver is going to descend the limits of no-decompression will be shorter. A diver who can descend 35 feet, he can remain there for 140 or more minutes with air supply. But if a diver goes deeper to 130 feet, he can only stay there for 10 minutes. After that time, he will accumulate too much nitrogen into his body. He will need some decompression stops while coming up. It will reduce his chance of getting decompression sickness. If a diver has no training in decompression, his deep dive won’t be enjoyable.
2. Air Consumption
As the water pressure increases during deep dive, so is a diver’s breathing air. If a diver descends to 130 feet, he or she consumes the air 5x faster than he does on the surface. Divers who are planning on to such depth will have limited dive time as the air consumption increases. The diver would need a bigger air reservoir to come up from the depth.
Narcosis for high pressure can become a nightmare for a diver. Nitrogen gas causes the problem of narcosis into the divers as the partial pressure increases. Any diver can experience narcosis. But the narcosis effects every diver differently. Even if you enjoy the drunken feeling of this narcosis, you should be warned.
The narcosis syptoms are similar to alcohol intoxication. You can feel impairment to judgment, reasoning, and motor coordination. Some divers have also faced visual disturbances and losing the time since. When a diver is deep diving, it is not a stable state. Every diver should increase their depths for deep dive slowly with experience. A diver should be sure whether he or she can take the initial deep dive. There should be a qualified instructor to monitor the diver’s narcosis signs.
4. Oxygen Toxicity During Deep Dive
When the concentration is high, oxygen becomes toxic. It causes unconsciousness, convulsion, and even leads to death. When one follows the depth guidelines, oxygen toxicity doesn’t become a bigger concern for the divers. But it is another reason for divers not to exceed the depth limitation. The oxygen can become too toxic from near about 218 feet. The reason is the oxygen percentage and other gas mixtures on that level.
5. Experience Matters
In scuba diving, depth is a big factor. As per psychology, the deep dives are very stressful as the exit points are way farther. Divers will start to notice that the air supply is dropping quickly at shallow depths. The breathing resistance can increase. They can also feel mild narcosis. Deeper dives are very beautiful as divers can see pristine reefs, variety of wildlife than any shallow dives. However, a diver should increase the depth with extremely cautious.