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April 2020    Download the Entire Issue (PDF) Vol. 35, No. 4   RSS Feed for Undercurrent Issues
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Metal Matters — Are Your Tanks Aluminum or Steel?

from the April, 2020 issue of Undercurrent   Subscribe Now

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At the huge international dive show in Dusseldorf, Germany, in January, I asked many traveling divers what irked them most about diving in an unfamiliar location. Besides the obvious things like local conditions and currents, the one subject that cropped up time and time again was the need to do a buoyancy check, despite using familiar equipment, because of using unfamiliar tanks.

When we dive, we work to be neutrally buoyant despite some pieces of our equipment being positively buoyant and others not. We wear lead weights to counteract the excessive buoyancy created by our combined gear, including the effect of the thickness of the suit and the amount of water we and our gear individually displace....


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