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Drmike · 30th June 2005, 05:20

Quote: (Originally Posted by caveseeker7)

I do agree though that breakthrough is more likely at the deep part of the dive due to ambient pressure, workload (compared to hanging on the line) and maybe temps.

So in fact you do agree with my statement.

Im confused - what part of my statement dont you agree with?

A used scrubber can sustain you a heck of a lot longer during deco than it can at depth - especially if, as in here, we are talking about deep dives.

So in my book that makes scrubber remaining time a far more critical concern during the deep part of the dive - hence my statement.

I have no problem running a YBOD scrubber for significantly longer than recommended on deep dives - when practically all that time is spent on deco when you are not producing much CO2. But Im not recommending that of course.

Remember the scrubber lifetime is based on the assumption that the diver isnt sat on deco doing nothing for hours at a time.

However I wouldnt ever exceed the rating for the bottom part of the dive (single or repeat dives) because you just dont have as much to play with there.

I hope that clarifies my meaning.

30th June 2005, 05:20	#18 (permalink)
Drmike RBW Member Current Rebreather/s: MK 15.X Ouroboros Other CCR Home Build Other Rebreather/s: Inspiration Classic Other CCR Home Build Join Date: Feb 2005 Posts: 3,335	Quote: (Originally Posted by caveseeker7) I do agree though that breakthrough is more likely at the deep part of the dive due to ambient pressure, workload (compared to hanging on the line) and maybe temps. So in fact you do agree with my statement. Im confused - what part of my statement dont you agree with? A used scrubber can sustain you a heck of a lot longer during deco than it can at depth - especially if, as in here, we are talking about deep dives. So in my book that makes scrubber remaining time a far more critical concern during the deep part of the dive - hence my statement. I have no problem running a YBOD scrubber for significantly longer than recommended on deep dives - when practically all that time is spent on deco when you are not producing much CO2. But Im not recommending that of course. Remember the scrubber lifetime is based on the assumption that the diver isnt sat on deco doing nothing for hours at a time. However I wouldnt ever exceed the rating for the bottom part of the dive (single or repeat dives) because you just dont have as much to play with there. I hope that clarifies my meaning.
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