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If you can't do this procedure correctly, you shouldn't go deeper,
ascend slowly to the surface.
The ascent
During the ascent, you have to do the maneuver of Toynbee, simply pinch
your nose but this time swallowing (swallowing saliva).
Pulmonary overpressure accident is one of the most serious dive
accident, it occurs when the diver stops breathing during an ascent. To
avoid this, simply adopt a flexible and continuous breathing.
The diver's ascent speed mustn't be faster than the small air bubbles.
For experienced users and graduates of an accredited center, the ascent of
a significant depth may require decompression according to the dive time
and the depth reached. The goal is to remove nitrogen accumulated in your
body, if you ascend too quickly, the nitrogen will not be eliminated. Worse,
gas bubbles of blood-borne risks to block some vessels, it can cause among
other risk paralysis or thrombosis.
Any pain or discomfort during ascent or descent should get you to stop your
progress. Go slowly and gradually to the surface while controlling the
pressure of your tank and your breathing
.
Physical effort
Do not make useless efforts before and especially during and after the dive.
Do not apnea before and after the dive.
Never attempt to exceed your limits, the Seagow 200 or 300 isn't developed
for performance.
Manage your breath, in case of shortness of breath, slowly and gradually
head towards the surface by adopting the slower breathing you can.
Adaptation to the environment
Underwater, touch only the elements you know and safely.
Adapt your dive to your environment, poor visibility can be a stressful factor.
Stress is often the beginning of a vicious circle ending accident, stress
management is essential assure a good dive.
Equip yourself the dive environment, choose a suitable mask and flippers.
An emergency snorkel is also advisable.
Cold can also be a stress factor, a suitable combination reduces problems
due to cold as breathlessness.
Do not dive in too choppy water, assess the current and ask about the
weather
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