Posted by Jeff B on March 20, 2001 at 07:26:56:
In Reply to: Am I the only one who needs lead with a steel tank? posted by Murddoc on March 19, 2001 at 20:36:38:
The net change is due to the reduction of the weight of the gas as you consume it. Where the difference is is that an aluminum tank is usually more bouyant then a steel wether its ful or empty, the shift in bouyancy is towards positive with alum as apposed to almost positive with steel. This is due to the empty starting bouyancy of the tanks, material does have a major effect.
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