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And that is entirely your opinion. No manufacturer agrees with that. Nothing is perfect and nobody expects it to be. Well, other than you apparently.Any BC that shows ANY amount of air loss over any length of time, must not be used and should be repaired, no if or buts about it. Losing air is radically different from air compression due to temperature changes (air temp. gets lower during storage than when BC was inflated).
And that is entirely your opinion. No manufacturer agrees with that. Nothing is perfect and nobody expects it to be. Well, other than you apparently.
The same number of manufacturers who say it can't.You mean that it is OK for a BC to leak air? What manufacturers say that it is OK to use their BC if it is leaking air? Name one please.
There isn't one out there who will warranty a wing because it isn't firm at three days.
No, you don't see it because there is no acceptable leak. If it leaks a little now, it will leak more tomorrow or the day after or when it is squeezed or when least expected.I have never seen a spec for amount of acceptable leak. You want to know why?
Because it doesn't matter.
That's not true. Mfg's I deal with say to test the BC overnight, if any leaks detected, there is an issue.If it holds firm for an hour, it will never come into play over the course of a dive.
If you want it to hold for three days, that is fine, but no manufacturer says that it should or will.
I'm not confused at all. My background leaves me adequately versed on pressure temperature relations.You are confusing "leaking" with temperature affects on volume.
That's not true. Mfg's I deal with say to test the BC overnight, if any leaks detected, there is an issue.