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> Date sent: 05 Oct 95 14:49:20 EDT > From: "Michael Fisch (GER)" <100447.2667@co*.co*> > To: "INTERNET:TECHDIVER@TERRA" <TECHDIVER@terra.net> > Subject: Regulator adaptation for depths> 100M > What must be done to adapt 1st. stages when the planned MOD is in excess of > 100M? Assuming that I will have to crank the intermediate pressure up and that I > use higher pressure Intermediate pressure hoses and stronger springs in my 2nd > stages - what intermediate pressure should I shoot for? Can I then also use > these regulators at lesser depths? The intermediate pressure should be between 130-150psi. Just like it always is. Remember, the ip (intermediate pressure) is 130-150 OVER AMBIENT. So at 100m a gauge checking the IP on your 1st stage should still read the same amount. > BTW I'm paying @ $1.15 per cu ft for helium in Germany, what is the wholesale > price for helium in the USA? I haven't done the math and it's 4am, but I pay $65 for a 330ft3 bottle. Ken -- -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Ken Sallot "There are old divers, and there are bold CIRCA divers, but there are no old bold divers" (904) 392-2007 kens@uf*.ed* http://grove.ufl.edu/~ken -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
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