dfx
Contributor
Steel HP tanks don't get lighter when they get empty, only AL80s do.
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- Thread starter chrpai
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OP
chrpai
Contributor
Adiabatic heating only occurs in steel tanks.
dfx
Contributor
I've even heard it from the instructors at my LDS. It seems so logical, I believed it at first too.
OP
chrpai
Contributor
The only safe and effective way to improve your diving is by taking tons of classes from instructors.
I find this discussion hard to read when I come back, forgetting the topic 
For example:
Steel HP tanks don't get lighter when they get empty, only AL80s do.
response:
Good one!
Whereas my gut response (before remembering the topic) is: "WHAT!?!?"
For example:
Steel HP tanks don't get lighter when they get empty, only AL80s do.
response:
Good one!
Whereas my gut response (before remembering the topic) is: "WHAT!?!?"
On land wouldnt steel HP tanks lose weight when going from full to empty?
I find this discussion hard to read when I come back, forgetting the topic
For example:
Steel HP tanks don't get lighter when they get empty, only AL80s do.
response:
Good one!
Whereas my gut response (before remembering the topic) is: "WHAT!?!?"
Good point. This thread could be spreading misinformation as people jump into it without reading the beginning post and seeing that these are myths.
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On land wouldnt steel HP tanks lose weight when going from full to empty?
no, they get heavier
My double steel 100s are much lighter when full carrying them down the hill to the water than after the dive and carrying them back up
...of course I am kidding.edit: seriously though, I may have been mislead by the smiley face after your question. In case you weren't kidding, you are absolutely correct -- a full cylinder is always heavier than when it is empty (on land or in the water).
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