Whilst we're busy weighing rebreathers... For comparison, does anyone know what a ready-to-dive twinset weighs?
I used to dive twin 12 litre steels with concave bottoms. These three are now being used as gas banks for O2, 'mix and air.
Have just weighed the full air twinset (obviously) with manifold and it's 39kg/86lbs. To dive, add to that the regulators, steel backplate, wing, a 1 litre steel drysuit inflate cylinder + regulator, and an additional 4kg/9lbs of lead V-weights. Should add the suit heater battery and torch.
Could we say 60kg/132lbs? My back says that's not far off.
I guess we can ignore the two ali80s for the deco gases as rebreathers need bailout