Took a brand new deco reg on a rec dive today. Toward the end of the dive...the connection from the hose to the second stage was leaking badly. Ended up shutting the valve off...and when I got back on the boat, unscrewed the hose from the second stage and found the oring broken. Didn't really affect our dive...but quite interesting to have this issue on a brand new reg/hose.
interesting equipment failure
- Thread starter djtimmy77
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The last line says it all: http://www.scubaboard.com/forums/ba...0-essentials-save-dive-kit-2.html#post7190864 
was the hose tight to the second stage? It was pretty common in the older DIR days to have divers cut the hose oring because the second stage was supposed to be hand tight when in fact it was loose, notice it loose under pressure and they tighten it, cutting the oring. stupid practice to keep the second stage hand tight
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cerich is dead nuts on.
You don't recover a wonky dive, you abort, fix, and dive on...
You don't recover a wonky dive, you abort, fix, and dive on...
R
redacted
Guest
Look closely at the break. If it had extruded and was then tightened, it will be a smile looking cut. If it is just a clean break, then if may have just been a defective o-ring. They are pretty reliable but nothing is 100%.
TN-Steve
Contributor
How tight is "tight"? The advice I was given by my LDS was that you should grab the wrench as close to the fitting as possible, and twist it with about as much force as if you were putting a lightbulb in nice and tight.
RBS
RBS
John_B
Grasshopper
Most Repair Manuals from the Manufacturers say 40lbs of torque on hose fittings.
I just snug it with a wrench slightly after it is hand tight.
40lbs is just an extra light push with your normal length spanner wrench.
The as tight as a lightbulb advice is pretty spot on. I like that analogy.
Anymore than 50lbs and it can be a pain in the butt to break the hose loose after it becomes used, salted, and pressurized multiple times.
If you want your repair tech to be cursing and applying excessive force to your reg you can tighten them like hell.
I just snug it with a wrench slightly after it is hand tight.
40lbs is just an extra light push with your normal length spanner wrench.
The as tight as a lightbulb advice is pretty spot on. I like that analogy.
Anymore than 50lbs and it can be a pain in the butt to break the hose loose after it becomes used, salted, and pressurized multiple times.
If you want your repair tech to be cursing and applying excessive force to your reg you can tighten them like hell.
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