That's right Jim...there is a HUGE difference between 160 cu ft (80+80) aluminum, and 154 cu ft (3400psi in LP 120) single steel. The rule of thirds is the rule of thirds.. Bill Jim Cobb wrote: > > Lets face it, there is no amount of "overfilling" a 120 which will give > you a decent margin of safety for both you and your buddy on a real > decompression dive. You need to have rule of thirds and enough back gas > to Deco out on if you loose your stage. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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