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On Fri, 7 Jan -1 Deep-gasdiver@uk*.ne* wrote: > How long typically would it take to lose air from a freeflow at depth - say > 60m, tank size 12litre (twins) ? Depends upon where the leak is (cylinder O-ring, regulator hose, etc.) and how severe. > How much effect does depth have on the rate of loss, is it multiplied > by each atmosphere of depth ie, if I similulate a free flow at the > surface, do I then divide the time by the number of atmospheres ? No. Depth may have a small effect if the leak is from the low-pressure side of the regulator 1st stage and is very small (i.e., a trickle). In this case, you have plenty of time to shut down the offending regulator. If the leak is large, the first stage is probably running wide open already, in a vain attempt to build up the intermediate pressure. You can pretty much figure the time at depth will be the same as time at the surface. -- Art Greenberg artg@ec*.ne* -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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