1/4 Turn Revisited

[ChrisDee]

FF to 1:38

Did you catch it? Apparently this is why this controversy still exsists.

 

[rhwestfall]

SMH [edit] (though I don't open to a jam-stop)

 

[Marie13]

 

[lexvil]

I still do that, I don’t like valves jammed either open or closed.

 

[DonFlorida]

30 years of wearing SCBA has ingrained the 1/4 turn back in my mind.

 

[EFX]

In the 330 dives I've done I have never opened a tank valve all the way and then a 1/4 turn back, and I have never had a problem with the valves. I suspect the people who have a problem are using too much force against the seat of the valve and damaging it so a 1/4 turn back becomes a remedy for them.

 

[Pedro Burrito]

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A ScubaBoard Staff Message...

Moved from Basic. Will probably have to move this to the Pub eventually.

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[Sevenrider860]

FF to 1:38

Did you catch it? Apparently this is why this controversy still exsists.

I noticed she emphasized putting an extra bit of "oomph" when tightening the regulator (~1:15). I never emphasize that, I emphasize "finger tight". Maybe that is why they want the valves turned back a 1/4 turn because they seem to emphasize an extra level of force at the end of tightening something.

 

[Pavao]

I still do that, I don’t like valves jammed either open or closed.

Thats illogical though, when done with the tank you don’t turn it all the way closed then a 1/4 turn open, do you?
The root problem of jammed valves is poor maintenance, really poor maintenance actually.

FF to 1:38

Did you catch it? Apparently this is why this controversy still exsists.

Also, strapping BCDs to cylinders like that is why the fall off often, that is not the proper way to use those (most popular?) cam bands.
I didn’t watch the whole thing

 

[Wookie]

40 years of operating valves for the navy has taught me to backseat valves with a backseat and turn valves without a backseat 1/4 turn closed from full open.

The only valves with backseats are the ones where failure of the packing material would cause a catastrophic problem, like a nuclear valve.

Scuba valve rarely have catastrophic failures. they leak and dribble when the packing fails, they do not release radioactive steam into the people tank.