Buoyancy Change Mystery… #askmark @scubadivermag
#AskMark Hi Mark! I got a mystery for you. I was diving properly weighted in the morning dive but then on the next dive I needed 2 extra Kgs and I was still a bit floaty at the end with a fully deflated bcd. In the 2h between the dives I ate, went to the WC and my semidry dried a bit. The tank was the same capacity but a different one (both 15L steel). I ended both dives at 50bar. I had a bit of water in my BCD. My buddy did not change its weight and was fine. So It's something to do with me/my equipment. I counted the lead afterwards and indeed I had 2 extra Kgs. I asked around the dive shop and I got: water in my bc, different tank weights or air pocket in my semidry. Any other ideas on what could have made such a drastic difference?
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