Doug
The NOAA Dive Manual states 2 scfm (standard cubic feet per minute) for each man at rest and 4 scfm for each man not at rest.
Your 3 cfm guess is right in the middle of the range. :o)
Stan
In a message dated 11/4/2003 1:16:01 AM Eastern Standard Time, DJACKSON99@aol.com writes:
Hello Stan
I'd sure like to know the recommendation in the NOAA Dive Manual for 2 persons. Seems to me that 2 people in an ambient submersible maintaining 30 feet and exhaling into an exhaust line would do better than 2 scuba divers swimming and enduring the cold. Would that not be true? If you were not exhaling into an exhaust line, I'd venture to guess that the answer is somewhere around 3 cfm per person.
Also SportSub now has a Dry Ambient model. http://www.ivccorp.com/
Doug Jackson
http://jackson.parcabul.com/sub/index.html