Here’s a question that came up recently. I’m a fairly new JJ diver, and I have taken it to warm water destinations twice. I know that the stock axial scrubber is rated to 180 minutes, in 40 meters of 4° c water. However, I understand that scrubber duration increases with water temperature. It would be good to have testing done on this scrubber in warmer water, since reproducible demonstration of increased duration could make a significant difference in terms of travel logistics (and cost, although that’s not the primary driver of my interest).
I emailed Jan Peterson, who very nicely replied right away. He told me that they haven’t done testing in any other conditions, so he couldn’t give a warm water scrubber time, which I understand. I suspect that doing testing is expensive, and if there isn’t a big market of warm water JJ divers then it wouldn’t be a good business decision to do that.
But at some point, as rebreathers become more widely used, I would think that some good benchmark data on this (unit specific, sorb specific, or otherwise) would be useful to the CCR community. Does anyone know of any projects to formally investigate this? I found a thread from about 7 years ago, but nothing more recent. I saw the DiveRite study but this was with the ExtendAir cartridge which eliminates variations in packing techniques. Maybe something to fund with crowdsourcing by tropical rebreather pilots?
I emailed Jan Peterson, who very nicely replied right away. He told me that they haven’t done testing in any other conditions, so he couldn’t give a warm water scrubber time, which I understand. I suspect that doing testing is expensive, and if there isn’t a big market of warm water JJ divers then it wouldn’t be a good business decision to do that.
But at some point, as rebreathers become more widely used, I would think that some good benchmark data on this (unit specific, sorb specific, or otherwise) would be useful to the CCR community. Does anyone know of any projects to formally investigate this? I found a thread from about 7 years ago, but nothing more recent. I saw the DiveRite study but this was with the ExtendAir cartridge which eliminates variations in packing techniques. Maybe something to fund with crowdsourcing by tropical rebreather pilots?