18 lbs Vs. 26 lbs??????

Please register or login

Welcome to ScubaBoard, the world's largest scuba diving community. Registration is not required to read the forums, but we encourage you to join. Joining has its benefits and enables you to participate in the discussions.

Benefits of registering include

  • Ability to post and comment on topics and discussions.
  • A Free photo gallery to share your dive photos with the world.
  • You can make this box go away

Joining is quick and easy. Log in or Register now!

Not sure about that. I was very, very sure to evacuate the wing completely.

I guess I'm just not as dense as the average person. HaHaHa

Thx again. SeaFlea
 
Last edited:
Not sure about that. I was very, very sure to evacuate the wing completely.

I guess I'm just not as dense as the average person. HaHaHa

Thx again. SeaFlea


Try this:

Jump into the water in just your trunks.

Pick up a 10 lbs lead weight.

See if you can just hang there motionless.

If so you are ~+10 lbs positive. If you have to work to stay at the surface you aren't.

Tobin
 
Another test is, in just swim trunks; stop treading and slowly exhale. I am a bit overweight (so the Dr. says) and I begin to sink in FW with less than half my lung volume exhaled. I can lay on the bottom for a short while with the residual air. In SW, I must exhale all of my lung volume and can not lay on the bottom.

In SW, with a travel plate (no weight to it), an AL80 and no neoprene, I can get by with 6 lb but am more comfortable with 8.
 
I got a tank with about 500 psi left, a AL80, got 12ft of water, evacuated the wing, then exhaled my lungs. i added just enough weight so that i would begin to sink when my lungs were empty. that amount of weight was 4 lbs.

actually i was keeping the weight symetrical and had to increase in 2 lb increments. two 1lb weights were not enough, went to two 2lb weights. so perhaps 3 would have been the mark.

end result, 4 lbs made it possible to do my 10 min safety stop without fighting to remain at depth.

as far as a AL bp, I like the SS because its great just having 4 lbs around my waist during the dive. I really like the BP/W config better than my SeaQuest Balance. Its just more stable.

SeaFlea
 
Well, I can say that 13 lbs is what I need to maintain 15-20ft during my safety stop.

With no exposure suit? This could be a first. Are you, errr... (looking for tactful word)...generous of girth?

You really should not need much if any more ballast than a steel plate in just a swimsuit, unless your swimsuit is made out of styrofoam.
 
yes, you could same i'm abit too thick. i think its my overall body construction. i'm similar to a "fireplug" in design. i think i'm inherently more buoyant than the average person.

note: i'm working towards reducing my dimensions, so maybe i will be able to reduce my diving ballast in the future.

good dives, SeaFlea
 
I got a tank with about 500 psi left, a AL80, got 12ft of water, evacuated the wing, then exhaled my lungs. i added just enough weight so that i would begin to sink when my lungs were empty. that amount of weight was 4 lbs.

I must have missed this post. An AL80 with 500 PSI is around 4 lbs positive, so your lead is basically offsetting that. Is this in addition to a steel plate with a steel STA?

Anyhow, it sounds better than 13 lbs of lead. If you want to try 3 lbs, you can put it centered on a cam band with one of the XS scuba camband pockets.
 
yes i was using a ss bp and a sta. together they weigh 9 lbs.

9 lbs on my back and 4 lbs on my waist.

good dives, SeaFlea
 
Just out of curiosity, have you tried getting in a pool with no tank/reg, just yourself wearing the backplate and STA? That would be interesting to see what happens.
 

Back
Top Bottom