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Chris, for that range you should use doubles. The single with the H valve is ok, but if your tank neck O-ring blows you'll be lucky to make pretzel town. Also, do the math, you have a lot more gas in the doubles. If you do any penetration you should be using rule of thirds. Thirds on a LP 135 filled to 3200 PSI is still only 55 cuft or so. On double 104's, even not overfilled it's 70 cuft. At 150 fsw that's about 15 mn bottom time. Chris Silkman wrote: ~ >I'm new to wreck diving with only about 100 dives, all in the North East >(CT, NJ area). Right now I dive with a single OMS LP 112. Needless to >say everyone I dive with uses double 112's or the like. In my southern >CT area there is a prominent wreck diver that some of you might know, >but I'll spare his name. He dives with a single OMS LP 135 (to 3200 PSI) >and usually dives in the 150-180' range like the Bass wreck. > >So my question, and I know it is a matter of opinion; what are the pros >and cons of diving doubles or one big single? Someone I know has a 1 >year old set of double OMS LP 112's set up with bands and manifold for >$800. Not sure which way to head though, a large single with H-valve or >doubles. > >What is the train of thought on this? > > > >-- >Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. >Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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