Thread: Combined Primary Rebreather and Back up RB (BOB) dsv
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Old 19th November 2007, 12:23   #3 (permalink)
diverreb
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Re: Combined Primary Rebreather and Back up RB (BOB) dsv
Question for you guys using a BOB.....

Pre-breathing is necessary ( 2 -5 minutes on average) to get the Sorb/EAC's warmed up so that the proper scrubbing reactions can take place.

How does that happen with a BOB?

Assume you have an elevated breathing rate at the time of switch-over.... Does that present risks associated with higher CO2 levels?

Just curious.

Richie
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