You want a Revo or Gemini where there are two scrubbers. When completing a dive of up to 3 hours, you simply remove the exhale scrubber, dump and refill, then swap the inhale scrubber to the vacated exhale scrubber and put the newly filled scrubber into the inhale side.
If diving for more than 3h, you refill both.
This means you only use 1.3kg/4lbs for up to 3h of diving, i.e. virtually all dives including deep deco dives.
BTW Revo make a large scrubber modification for longer runtimes. Allegedly they've only ever sold a handful of these, such is the low demand.
If diving for more than 3h, you refill both.
This means you only use 1.3kg/4lbs for up to 3h of diving, i.e. virtually all dives including deep deco dives.
BTW Revo make a large scrubber modification for longer runtimes. Allegedly they've only ever sold a handful of these, such is the low demand.