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Post by scubadiverbob on Aug 17, 2014 10:04:28 GMT -8
This was the original problem with single hosers (along with the fact many were upstream). This is why double hose regulators were considered much safer to dive with back in the day, and today. Never had a hose break (burst) on me; but, it probably wouldn't be much fun !!! I'll stick to double hose regulators .... www.tridentdive.com/hoserecall.pdfwww.tridentdive.com/ahoserecall.pdf
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Post by SeaRat on Aug 17, 2014 11:45:06 GMT -8
Thanks Bob,
Just to clarify, this is for high pressure hoses attached to submersible pressure gauges, and other high pressure hoses. They have a rating of 5000 psig, and you should read the text about the failures.
This is not for the low pressure hose on the original single hose regulators.
John
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Post by scubadiverbob on Aug 17, 2014 15:19:47 GMT -8
John,
Never had it happen, just when I started diving, many were still using double hose regs. I was told, since the hoses are pressurized, if they break .... "it'll pop you in the face". Don't know if it's true, never had one break on me. If I see one where the rubber is starting to crack, I replace the hose! Better safe than sorry, right? Never had this problem with double hose regs I have .... They didn't tell you that when you first started diving?
Robert
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Post by scubadiverbob on Aug 17, 2014 15:21:28 GMT -8
I still have to check the hoses to the gauges I have .... I think they are all older than the ones being recalled.
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Post by Deleted on Aug 17, 2014 15:53:09 GMT -8
I've had HP hoses fail on me, mostly before a dive I would see this, or during the dive my dive buddy would see it and comment or point it out...always at the clamped point of the end fitting...never had one burst.......last time was in 2007 in Cozumel........hose showed leakage as I opened the valve after attaching my Ram........quick swap with my Tekna HP hose saved the dive.......just a matter of course, almost routine......just gotta check your gear before going under.
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Post by duckbill on Aug 17, 2014 18:21:14 GMT -8
HP hoses need to be replaced when you start seeing little bubbles forming on the hose. They normally exhibit pin hole failures long enough before catasrophic failure to detect if you're observant. Wouldn't be too fun to have a HP hose let loose during a dive!
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Post by SeaRat on Aug 18, 2014 8:10:10 GMT -8
Please note that this recall involves a different type of failure, a failure at the crimp fitting. Apparently they had several lots that were improperly crimped. This is different from the failure that Duckbill describes above, which comes from wear and tear of the hose itself. Here's what the notice states:
If you have this hose, discontinue using it immediately! I'm pretty sure that you can get a brand new one from Trident Diving Equipment.
John
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Post by SeaRat on Aug 18, 2014 8:15:08 GMT -8
John, Never had it happen, just when I started diving, many were still using double hose regs. I was told, since the hoses are pressurized, if they break .... "it'll pop you in the face". Don't know if it's true, never had one break on me. If I see one where the rubber is starting to crack, I replace the hose! Better safe than sorry, right? Never had this problem with double hose regs I have .... They didn't tell you that when you first started diving? Robert Robert, No, I have not ever had a failure of a LP or HP hose while diving. I remember when the single hose regulators first came out, the dive shop in Portland had a demonstration of these hoses. They took a LP hose, cut it half-way through, then hooked it up to a car. Another car then dragged the first car with that half-cut hose. The dive shop posted photos of this demonstration for several years is these regulators were introduced. John
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Post by cnotthoff on Aug 18, 2014 8:41:59 GMT -8
An equipment care and maintenance course I taught included a presentation about hoses. We looked at how to tell if a hose is going bad as Duckbill described.
To show the difference between high pressure and low pressure hoses, I would don safety glasses and ear protection, then pull out a chopping block and hatchet. When I chopped through the low pressure hose (leaving primary 2nd and inflator hose to IP gauge intact) the LP dropped so much that I couldn't breath from the primary 2nd stage. It also made a LOT of noise.
After replacing the chopped hose with a plug, I would chop the high pressure hose. It made a loud bang then hissed slightly due to the tiny orifice in the HP port. IP dropped only slightly and I could still breath from primary 2nd. In both cases, your dive was over.
This demonstration always made a big impression. I don't recommend diving with faulty high or low pressure hoses.
Good Dives,
Charlie
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Post by duckbill on Aug 18, 2014 9:52:55 GMT -8
Charlie, where do I sign up for YOUR class? LOL! Sounds like your class was a lot of fun!
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Post by scubadiverbob on Aug 21, 2014 14:30:22 GMT -8
I have some old hoses I wouldn't dive with ... thanks for the info, Charlie! Your right, Terry, sounds like fun! Have to use my Al 13 pony bottle ... wouldn't want to mess up my steel tanks.
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Post by scubadiverbob on Aug 21, 2014 14:32:02 GMT -8
Terry, you got a hatchet we can use? Bet if we did it at the dive site DWR Security would find it interesting !!!
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Post by scubadiverbob on Aug 21, 2014 14:33:36 GMT -8
DWR - CA Dept. of Water Resources
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Post by cnotthoff on Aug 22, 2014 15:58:19 GMT -8
I did this demo at our dive club meeting earlier this year. I informed all club members that it might be loud. I forgot to warn the owner of the restaurant where we hold our meetings. 3000 psi makes a big bang at first chop. He thought I had blown up the place. Sorry about that.
Good Dives,
Charlie
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