Can you manifold luxfer and catalina tanks?
- Thread starter lakewinni
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Tamas
Contributor
oxyhacker:
Since we all know that most tanks are negative when full and aluminiums tend to be positive when empty, if one tank has a higher buoyancy then that would be an issue with trim and level.
Since they contain the same amount of air, if they weigh differently empty they will be different by the same amount full.Tamas:
ianr33
Contributor
I *believe* that the weight distribution is a bit different.Luxfers are preferred for deco bottles as they get more floaty on the tail when getting empty and the back of the tank floats up out of the way better. Catalinas may be better for backgas as they tend to lie more horizontal.
I suspect these differences would never be noticed if you had one Catalina and one Luxfer together as doubles.
I suspect these differences would never be noticed if you had one Catalina and one Luxfer together as doubles.
Tamas
Contributor
wedivebc:
Catalina S80
Empty dry weight = +31.6
Full = -1.8
Empty = +4.0
Luxfer S080
Empty dry weight = +31.4
Full = -1.4
Empty = +4.4
Both cylinders are very close in their specs, but as noted above they tend to swim different when empty (or near) so the extra 0.4lbs might be a bit more noticeable when doubled - maybe not.
My point was the weight swing is the same so it doesn't matter whether they are full or empty. .4lb is hardly noticable maybehe could put a nitrox sticker on oneTamas:
I would be way more concerned about the different heights damaging the manifold
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