| How many hours from a Prism with 19 cft tanks? As a brand new Prism diver, with only pool time so far, I would like to know what people think is a typical expectation for dive hours available in one packed scrubber, one 19 cu-ft (3 L) fill of O2, and one fill of air diluent. If I need to specify some assumptions, lets say 65 to 70 degrees F (18-21 C), and 80 to 100 ft (25-30 m) diving. |