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Jim Surely the pony has a role in diving, but it is the limiting factor, if it is used as a redundant gas supply then the size of the pony and your gas management limits the dive. In Orkney we have similar problems with cold etc to you, we continually see divers using ponies as a bailout when they have no idea on their duration and have problems with freeflow with their primary reg.(normally when it is straight from a service). The common result is the reserve gas is not sufficient to clear the deco obligation accumulated. In message <960712192730_357452520@em*.ma*.ao*.co*>, JimH720113@ao*.co* writes >geo. >water in lake superior is very clear. at times 100' viz. this is quite >deceptive as usually when there is is >75'viz the water is between 32 and 38 >degrees. A freeflow on a reg set will put both the primary and secondary unit >out. it doesent matter how many 2nd stagers you have 1 tank only holds so >much air.....octo stuffed/wrapped,inserted,,etc. >the pony is a COMPLETE REDUNDANT system,,,,i am sure you can appreciate that >in the "problem" situation. We have her in the Great Lakes a major free-flow >problem because of the temp. you may not be aware of it but all serious dives >are done with ponies,,,not dogs. also,,,,in your last post you said you >"Assume" PLEASE DONT >as I am not.........sorry for the banwidth but...my opinion only.. >ps...GUNILDA water should be a BALMY 38/39 degrees,,,,,,,cant wait >safe diving >-- >Send mail for the `techdiver' mailing list to `techdiver@terra.net'. >Send subscription/archive requests to `techdiver-request@terra.net'. -- john thornton
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