Ronniemu
Contributor
I am a new diver and for the first time, will be using a pony bottle. Although these questions may seem simple to most, I found out a long time ago, it always helpful and educational to ask the pros. So here goes!
1) I tried a buoyancy check at the surface of my pool with a (80 cu ft HP steel tank) and a 5 mil wetsuit. At the time I had 500 PSI of air left. The weight I needed to be at eye level with no air in my BCD and holding a normal breath was 4 pounds. Using the same configurations in salt water, to my knowledge I would then add 5 pounds additional weight to a total of 9 pounds. Can someone let me know if this would be correct?
2) I purchased a 30 cu ft pony bottle. It has a full buoyancy of (-2.5 pounds). I attached the pony bottle to my gear as listed above and wanted to try the pony bottle in my pool. I removed the 4 pounds of weight that I had installed in my BCD as mentioned above. I then installed 3 pounds of weight in the left side of my BCD as the pony bottle was mounted on the right of my main steel tank. I wanted to balance my gear as the mounting of the pony bottle made everything lopsided. I then tried a buoyancy check at the surface. I was somewhat heavy, I now had a total of 6 pounds (3 lbs of weights in the left side of my BCD and almost 3 pounds of negative buoyancy fro the pony bottle). Instead of the four pounds of needed weight, I now had a total of 6 pounds. Is it correct to say I would now need only three more additional pounds for salt water?
1) I tried a buoyancy check at the surface of my pool with a (80 cu ft HP steel tank) and a 5 mil wetsuit. At the time I had 500 PSI of air left. The weight I needed to be at eye level with no air in my BCD and holding a normal breath was 4 pounds. Using the same configurations in salt water, to my knowledge I would then add 5 pounds additional weight to a total of 9 pounds. Can someone let me know if this would be correct?
2) I purchased a 30 cu ft pony bottle. It has a full buoyancy of (-2.5 pounds). I attached the pony bottle to my gear as listed above and wanted to try the pony bottle in my pool. I removed the 4 pounds of weight that I had installed in my BCD as mentioned above. I then installed 3 pounds of weight in the left side of my BCD as the pony bottle was mounted on the right of my main steel tank. I wanted to balance my gear as the mounting of the pony bottle made everything lopsided. I then tried a buoyancy check at the surface. I was somewhat heavy, I now had a total of 6 pounds (3 lbs of weights in the left side of my BCD and almost 3 pounds of negative buoyancy fro the pony bottle). Instead of the four pounds of needed weight, I now had a total of 6 pounds. Is it correct to say I would now need only three more additional pounds for salt water?