How much lead to use ...

[vondo]

Did you add water to your BC bladder by depressing the inflator button while it was above your head?

What difference does that make. Water is neutrally buoyant in water.

 

[String]

I'd go for trapped air causing the ascent. The rec wing is way too big for a single tank and does wrap and trap gas like that.

Do a proper weight check - suck a tank down to nearly empty and go to 3m. You should be able to be neutral at 3m or so depth with NEARLY no gas left in the wing - get a buddy to check by looking at or feeling it. Or do it with 50 bar or so in and add about 1/2kg. Or 100 bar and add 1kg.

 

[diver 85]

I did my first sweet water dive a few days ago and it left me with weighing questions.

I was diving in a 3/2mm shorty with AL-80 tank with a rec wing BCD. With 6 lbs of lead I was ok in the beginning but felt light at the end of the dive. Had problems staying submerged. On the next dive, I added two more pounds (total 8 pounds) and was negatively buoyant until I blasted my wing almost full of air to acheive neutral buoyancy.

Can any one please help me with what I am doing wrong? 6lbs seems light at the end of the dive when the AL-80 is empty and 8lbs makes me sink!

sounds like 7 is the perfect number for you----