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I was looking at the tank specs for OMS and PST tanks LP tanks the other day. PST say their 104 has a capacity of 104 cu ft at 2640psi, and weighs 45lbs without valve. OMS say their 108 has a capacity of 112 cu ft at 2640psi, and weighs 41lbs with valve. Both state a liquid capacity of 17 litres. Firstly, two tanks with the same liquid capacity cannot have different air capacities at the same pressure, so someone ain't telling the whole truth - anyone know how the volumes really compare. Secondly, the significantly lower weight of the OMS tank seems to make it a better choice for ocean diving, but up to now I've been lead to believe that the PSTs are a better choice. Anyone have any opinions between the two for ocean diving? I got the specs from the manufacturers brochures, but FYI they're also to be found at: OMS: http://www.h2oadventuregear.com/productinfo/tanks.html (note the PST specs here are wrong). PST: http://scubadiving.com/gear/27tanktips/stats.shtml http://www.pstscuba.com/aaspo.htm (not much detail) Ian P.S. - I know there was a recent thread about ALs for ocean so don't start that over again - I just want to know how these two compare for ocean use. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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