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DON'T SHOOT THE MESSANGER. The results that I have talk about is what I have observed. I really don't care if SP regs are a good reg or not. I use an odin with a the long hose for wreck diving and a conshelf with a short hose for commercial work done on scuba. I've never had to bail on a dive because of a freeflow. I have never experienced a freeflow. BTW I have used these regs on 400+ dives and 8 years exp.. in all kind of surface temps. with mostly every in water temp. if I'm lucky is in the 40's F I highly doubt that the salt/fresh water theory is going to go anywhere. Randy Sullivan Sault Ste. Marie, Ont sulteck@ic*.ne* -----Original Message----- From: Kent.Lind@no*.go* <Kent.Lind@no*.go*> To: techdiver@aquanaut.com <techdiver@aquanaut.com> Date: Thursday, February 19, 1998 9:45 PM Subject: Re: Cold water performance of Scuba Pro Regs >Randy et al. > >I don't understand why you Great Lakes folks have such trouble with your SP >regs. Is there some quantum singularity hovering over the Great Lakes that >only affects Scubapro regs? > >Perhaps it is the freshwater vs saltwater? Many folks up here in Alaska use >Scubapro without any of the problems you folks seem to face. I've never even >heard of a SP reg failing on anyone, and winter air and water temperatures in >Alaska are every bit as cold as what you face on the Great Lakes in winter. >My buddy Rob and I dive MK20s with an assortment of D400, G250, G500, and M50 >second stages and we dive on a weekly basis all winter long. In addition, the >MK10+/G250 seems to be pretty much the standard issue regulator for the local >Alaska Dept. of Fish and Game and NOAA research dive programs and I don't hear >about them having any problems with Scubapro regs. In fact, the only >regulator that has ever freeflowed on me at depth is my Poseidon Odin which >has now been relegated to argon use. > >We don't dive under the ice but the water temperatures can be just as cold. >The lower freezing point of seawater and our 18' tides and swirling currents >tends to keep the local fjords ice free most winters. Right now, due to the >El Nino, the local water temp is a balmy 38 degrees F. Last year in January >I recorded water temps as cold as 31 degrees. The only difference I can think >of between our conditions and what you face on the Great Lakes is the fact >that you dive in freshwater. Obviously, that shouldn't make any difference >for regulators that freeze due to moisture in the tank or hoses. But, it >might make a difference for failures due to ice forming in the free-flow >chamber of the 1st stage around the piston since freshwater ice forms so much >easier than saltwater ice. > >That's just a theory though. Anyone know if regulators are more likely to >freeze/fail in freshwater as compared to saltwater under otherwise identical >contitions? > >Kent Lind >Juneau Alaska > >Randy Sullivan wrote: >> >> Nancy >> >> I am glad that you are happy with your SP regs and I do hope they work in >> the warm water as well as they perform in cold. <g> >> >> The experience with SP reg that I pull on is owning & running a charter >> operation in W. Fish Bay for 3 years. I have seen many SP regs fail in the >> summer time when the reg hits the thermaclien. This winter, here locally, >> no one has been able to do ANY diving using a SP reg. You must have the >> best SP regs that they ever shipped because I don't perceive them as >> dependable regs based on what I have seen. >> >> BTW I have never even tried a SP reg. Guess what, based on the failure rate >> that I have seen, I doubt I ever will. SP regs, do however, rate much >> higher on my list of regs that I would use in a pinch than say dacor or >> Sherwood. >> >> This IS after all just my $0.02 >> >> Randy Sullivan >> Sault Ste. Marie, Ont >> sulteck@ic*.ne* >> -----Original Message----- >> From: Nanci LeVake <nlevake@pi*.co*> >> To: Randy Sullivan <sulteck@ic*.ne*>; techdiver@aquanaut.com >> <techdiver@aquanaut.com> >> Date: Thursday, February 19, 1998 9:44 AM >> Subject: Re: Cold water performance of Scuba Pro Regs >> >> > >> >Well, I ice dive with my two Scuba Pro regs every weekend, and have _never_ >> >had a problem with them. They aren't environmentally sealed or tuned any >> >differently than how I like them for Florida springs. Besides that, I've >> >also dived them in quarries, in ~40-45F water, down to ~130 or so, and >> >never had a problem there, either! I _am_ a little bit worried about how >> >they're going to work in 82F water in Cozumel, they've never been warm >> >before.... <g> >> > >> >Nanci >> > >> > >> > >> > >> >At 06:19 PM 2/18/98 -0500, Randy Sullivan wrote: >> >>The problem with SP regs is that they are freeflowing out of the box, >> >>period. If this is how SP ship regs where the they are going to be used >> in >> >>cold water, they SHOULDN'T leave the warehouse in the first place without >> >>all the twiking done to the reg prier to shipping. Up here you can't buy >> a >> >>new car off the lot without a block heater. You shouldn't be able to buy >> a >> >>reg that isn't cold water ready out of the box. >> >> >> >>I have seen an Odin's perform at 500'+ @ 38*F water temp with no problem. >> >>I own one. I have used my OLD conshelf in the winter @ -15*C surface >> temp. >> >>with water temp. @ 31*f (yes that is what my computer registered), >> >>breathed the reg at the surface and used the same reg for an 8 hour shift >> >>fixing a tug, no problem. I own one. >> >> >> >>The story of making a sows ear into silk purse is a good comparison to >> make >> >>when trying to use a SP regs. in cold water. I'M NOT saying they aren't >> >>good regs. What I am saying is that they are not the best choice of reg >> for >> >>cold water. >> >> >> >>Randy Sullivan >> >>Sault Ste. Marie, Ont >> >>sulteck@ic*.ne* >> >> >> >>-- >> >>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'. >-- >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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