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Scuba Forum / General / June 2004Cold water configuration and H or Y valvles.
Hi all I posted a question some time ago and got lots of good feedback, however there was some conflicting advice. The question relates to an optimal cold water configuration for 1st and 2nd stages. I think we agreed on the following: Two 1st stages (a primary 1st stage and a secondary 1st stage), each with a its own 2nd stage Inflator to go on the secondary 1st stage If using a dry suit have one inflator on each 1st stage if using dry suit for bouyancy put its inflator on the secondary 1st stage if using BCD for bouyancy put its inflator on the secondary 1st stage ie the inflator that is used most should be on the secondary 1st stage for load balancing Now, some answers before implied there should be two 2nd stages in total, and some implied three, I assume all we need is two 2nd stages in total (1 is used as a 2nd stage on the primary 1st stage and the other is the 'yellow' alternate 2nd stage on the secondary 1st stage, ie 2 mouth pieces in total. Is this correct or did some of you say keep a second stage AND an alternate on the primary 1st stage PLUS a secondary 2nd stage on the secondary 1st stage, ie 3 mouth pieces in total? Related to the configuration question is what type of valve do you recommed for this, H or Y valve, or some other? Thanks. > Related to the configuration question is what type of valve do you > recommed for this, H or Y valve, or some other? H valves are for strokes. But then, only strokes use drysuits for bouyancy, so if you're using your drysuit for bouyancy, then you want an H valve.  Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 > ? Related to the configuration question is what type of valve do you > ? recommed for this, H or Y valve, or some other? [quoted text clipped - 3 lines] > But then, only strokes use drysuits for bouyancy, so if you're using > your drysuit for bouyancy, then you want an H valve. And if you?re not using a drysuit, you?re obviously not diving in cold water. Drysuit inflator on the primary 1st stage, BCD on the secondary. Inflate the drysuit only as much as you need to keep warm and avoid squeeze, and use the BCD for buoyancy control. This way, should you have to shut down the primary 1st stage due to a freeflow, you will only lose the possibility to inflate the suit. You will still be able to inflate the BCD, which is the lift device you will be most likely to want to employ in a stressed situation - since it is the device you first learned to control buoyancy with. Panicked divers tend to go back to the basics. JL Diving in Finland - cold enough for ya? > "We're going to rush the hijackers." > -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 > H valves are for strokes. And you ALWAYS dive isolation manifolded doubles? Curtis > > H valves are for strokes. > > And you ALWAYS dive isolation manifolded doubles? Even given this wide, thick path of clues, that's the only thing you can come up with? Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 > ? > H valves are for strokes. > ? > ? And you ALWAYS dive isolation manifolded doubles? > > Even given this wide, thick path of clues, that's the only thing you > can come up with? Given that I earned a cert you only dream about, I figure that I came up with a nail in yer boot. Curtis > > ? > H valves are for strokes. > > ? > > ? And you ALWAYS dive isolation manifolded doubles? > > > > Even given this wide, thick path of clues, that's the only thing you > > can come up with? > Given that I earned a cert you only dream about, I figure that I came up > with a nail in yer boot. Ooooh. Dude, there are big lizards of one phylum or another. 'Nuff said. He has all the certs from all the classes. And a couple extra's you don't even want to get him going on. He still calls me when he is pissed off. Not for advice, of course, just to bitch 'cause he knows I am hip. Occasionally because I already told Him what was going to happen, but He hates that. Unless it comes from the One True Dive Babe. It is then that I know He truly loves me. He knows I been to collage. (just like college, only a joke; Cosmic Debris and all that rot) > Dude, there are big lizards of one phylum or another. 'Nuff said. > [quoted text clipped - 15 lines] > > (just like college, only a joke; Cosmic Debris and all that rot) Not to worry, just a tender jab. Just gotta hit on that generalization, and remind him I am not clueless, not tossing down a gauntlet. Curtis > Not to worry, just a tender jab. Just gotta hit on that generalization, > and remind him I am not clueless, not tossing down a gauntlet. There's another explanation? Drunk? Old Lady signing on your account? Took a part as a Clueless Newbie in a high school play? Or is this really the best you can do? Signature"I know we're going to die. There's three of us who are going to do something about it." -Tom Burnett, aboard United Airlines flight 93, September 11, 2001 > There's another explanation? > > Drunk? Old Lady signing on your account? Sorry, I rarey drink and never abuse alcohol, and my SO has very little interest in scuba. > Took a part as a Clueless Newbie in a high school play? I doubt I'm that good at acting. That would be my cousins who seem to have that talent. > Or is this really the best you can do? Well, I could mimic Jim W., but I figure you don't deserve that from me. Don't bother trying to give me any more clues though, I can assure you I am not in any need of yer tutorials. Curtis > Don't bother trying to give me any more clues though, I can assure you I > am not in any need of yer tutorials. I didn't give them to you. There's no tutorials. This wasn't about you until you answered. "Hey, STUPID!" "I'm not stupid!" Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 > Dude, there are big lizards of one phylum or another. 'Nuff said. > > He knows I been to collage. > > (just like college, only a joke; Cosmic Debris and all that rot) There you go with your f.cking college words again. Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 > > ? > H valves are for strokes. > > ? [quoted text clipped - 5 lines] > Given that I earned a cert you only dream about, I figure that I came up > with a nail in yer boot. So, it's lack of imagination? Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 "Jammer Six" wrote > H valves are for strokes. Yeah, *real* divers use J-valves... On their MK-IVs, no less... <grin> > "Jammer Six" wrote > >>H valves are for strokes. > > Yeah, *real* divers use J-valves... On their MK-IVs, no less... <grin> Mark-IVs???? We don't use luxuries like that. Real divers use Mark-IIs, with a Mark-2 second stage. >:-) SignatureMichael Wolf ----- Cthulhu For President. Why settle for the lesser evil? remove stopspam to reply >> "Jammer Six" wrote >> [quoted text clipped - 4 lines] >Mark-IVs???? We don't use luxuries like that. Real divers use Mark-IIs, >with a Mark-2 second stage. >:-) Real divers breath straight off the tank. The real real divers don't bother with valves. Signaturedillon When I was a kid, I thought the angel's name was Hark and the horse's name was Bob. > >> "Jammer Six" wrote > >> [quoted text clipped - 7 lines] > Real divers breath straight off the tank. The real real divers don't > bother with valves. Real Divers (tm) dive naked with the magic f.cking stone. Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 > Real Divers (tm) dive naked with the magic f.cking stone. I thought you said you'd never seen a naked diver? > Is this correct or did some of you say keep a second stage AND an > alternate on the primary 1st stage PLUS a secondary 2nd stage on the > secondary 1st stage, ie 3 mouth pieces in total? One alternate second stage is enough. > Related to the configuration question is what type of valve do you > recommed for this, H or Y valve, or some other? For single tank configuration you can use either an H or a Y valve. The H valve is a bit more flexible for setting up and use. For double tanks its preferable to have a twin tank manifold. Your gear may dictate otherwise, but for cold water diving in a trilam drysuit I use the drysuit for buoyancy. It works fine unless grossly over-weighted. The LP hose for the drysuit is attached to the secondary while the LP hose to the bladder is attached to the primary. > The H valve is a bit more flexible for setting up and use. Stroke alert. Signature"We're going to rush the hijackers." -Jeremy Glick, aboard United Airlines flight 93, September 11, 2001 |
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