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[Must see] How to deal with five kinds of underwater crisis
What should you do if you encounter unexpected situations in a dive? For example, when diving, it encounters an irresistible undercurrent, or the exhaustion of the gas source and no spare air source.
Today, let's take a look at the treatment of five kinds of diving crises. If you follow the rules strictly, you should not encounter the following situations, but it is always necessary to understand them.
The air source is exhausted and there is no backup air source
You are enjoying the fun of diving and slowly approaching the extreme edge of the depth of recreational diving. Suddenly, the more you suck, the tighter you feel, the more you feel like vacuuming. What should you do at this time?
Solution: Find a buddy and use the alternate regulator of the snorkel to breathe. Let the buddy lead you slowly. Exhale constantly, letting out the expanding gas in your lungs.
When your computer suddenly fails, you lose your judgment.
Be sure to face up to the problem of equipment failure, not just computer watches, but also many diving instruments. You are likely to make a mistake because of a magnetic magnetic field; you may not know how deep it is, how long it takes to dive, or even on which side, you can say that it is completely lost. What should you do at this time?
Solution: Find ways to attract the attention of your buddy, use gestures to sway to inform the situation is not good, and immediately make a rising gesture. Carry out ascending procedures (slow and take care of each other). If you have a good habit of constantly paying attention to the residual pressure gauge, you should have a general understanding of your residual pressure. Most of the time, you don't need to rise urgently. The reason for the safe stay in the five-meter place is the same. The five-meter safety stay allows the residual oxygen in the body to be discharged more time.
Sneak
In the water, you hear the voice of your buddy asking for help. When you notice, your buddy has exhausted the air due to excessive ventilation, and spit out the regulator from the mouth because of panic. Yes, the panic-out diver in front of you is your best buddy, and also the one who may make you lose your life. This dangerous lethality is generally ten times greater than equipment failure. Now, what should you do?
Solution: Carefully approach the out-of-control diver and use gestures to judge his condition and mental state. Observe whether his gas cylinder is empty or not. Don't let an desperate diver grab your main regulator and endanger the safety of two people. He may grab the regulator because of tension and hold you tightly. You must have no way in that situation. Find your own backup regulator. Please take your spare adjuster close to him, straighten your hand and firmly hold his BCD. This action will ensure that you have an appropriate distance from him. If you are in the ascending process, your buddy does not respond to the symbiotic gesture, or is too nervous to communicate, he may rush to the surface despite all the arrogance, must catch him, must not let him take this risk.
Flashlight failure
What happens when your diving flashlight suddenly loses power (or malfunctions) during the dive?
Solution: At this time, you need to calm down and observe the surrounding situation, quickly find the light source around you, that is the location of the buddy, then swim to the light source, use gestures to inform the buddy of your situation, and use a flashlight together, diving It is recommended to have an alternate light source, and at least two flashlights and other light sources are carried at night.
Encounter vortex
At some point, you may sneak into the world's strongest undercurrent trench because you don't know the terrain. You will suddenly be taken to the open sea by a huge undercurrent of at least 16 knots, or by the whirlpool on the shore to the bottom of the sea. What should you do at this time?
Solution: Don't try to resist the strong torrent, the cause of most vortex deaths is exhaustion. Follow the whirlpool, swim in the direction parallel to the shore, and then swim to the shore after leaving the vortex. If the vortex sucks you down, you'd better follow its power to see and flash the stones you might touch. Most of the time, the vortex on the shore will not drive you more than 100 feet away, and once you leave the shore, the water will weaken immediately. You can wait for the opportunity to rise, then see the direction of the shore and swim back quickly. .
 
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