Posted by Murddoc on March 21, 2001 at 18:20:02:
In Reply to: Re: It's even easier than that.... posted by MHK on March 21, 2001 at 16:18:00:
Why is it assumed that I will wear excessive weight when using steel but not AL? As I explained earlier, the weight change from full to empty is a function of air capacity not tank material. If this is wrong, please tell me how the weight loss occurs. I know that an AL tank is bouyant when empty, that is why I need more lead to go down. But JeffB claims that an AL tank will loose more weight than an equal sized steel tank. Please explain how.
If a greater bouyancy change (from full to empty) is what is desired, why not recommend a larger tank? According to manufactures specs, an AL80 will loose 6 lbs while a steel 95 will loose 7.2 lbs.
If, as you suggest, an AL tank will help me surface in an emergency, would it not also cause me to surface when there is no emergency requiring extra lead to overcome this effect?
I appreciate your patience in trying to educate me on this matter.