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How do water and pressure work while diving?

Pressure is a main concept regarding diving, and all those who practice this activity should be familiar with it and the way it affects them. Water and pressure produce effects on each other as well as on divers and there are some main aspects of them which divers should know.

First of all, you should be aware that water and pressure have a reciprocal effect similar than air and pressure. While air pressure decreases with altitude, water pressure decreases with depth. This means that the deeper we go into the water, the higher the water pressure and its effects will be on us.

If you wish to learn how to actually calculate the water pressure and know the numbers, you should know that every 33 feet of water the pressure increases 1 ATM or atmosphere of pressure, which means that you should add one ATM for every 33 feet of water depth you reach. An atmosphere of pressure or ATM is the air pressure at sea level, and it is used in order to measure pressure while we go into the water.

It is also important to remember that the human body is mainly composed by water. Therefore, the pressure which affects the water in which you are while diving affects your body as well. This way, you will feel pressure in your body air spaces such as ear canals and lungs.

Besides, it is also important to have in mind the fact that your body air spaces become reduced while pressure increases. This way, when you are at 1 atmosphere of pressure or ATM such air volume turns into a half, or if you are at 3 ATM it turns into a third of its regular volume.

On the other hand, the density of the air of your body spaces as well as your scuba tank also varies while water pressure increases and you go deeper into the water. This way, while you are at 2 ATM this density is the double than it was at 1 ATM or while you are at 3 ATM it is three times what it was at sea level.

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