#15534
Brian_V - 9/25/2013 2:03 PM
I’m just going to go with ks54’s recommendation of a 40 cu ft pony bottle, makes the most sense with the rule of 1/3’s.
I’ll be using a 100 cu ft steel tank for these dives. At worst case I’d need to switch over to the pony bottle right at my turn around point, so it makes since that I need at least 1/3rd of my primary tank to get me back to the surface from that point. So that means I need a minimum of 34 cu ft, which means I’ll round up to the 40 cu ft tank.
The extra 6 cu ft gives me a bit of a safety factor, which is not much, but better than nothing!