O2 Cleaned Green Collar

[JVM4.0]

I am getting ready to start a rebuild on my SE2 2nd stage regs. Been collecting all the parts, tools and manuals I need to do so. One thing I think I may need to address are the green "collars" my LDS put on the hoses to indicate that they have been O2 cleaned. There are dates on the collars, and my LDS tells me that O2 cleaning is part of the annual rebuild, and the collars are renewed every year with new dates.

Am I going to have trouble convincing any dive op that my equipment is Nitrox compatible without those dated collars? How do others handle this? Have I been fibbed to by the LDS? HHmmmmmm.......

I think I'd rather find out now, than at the dock at Buddy's Dive in a few months.

 

[crpntr133]

As long as it isn't over 40% you don't need to worry about it. If over that then I would mark it somehow but it isn't necessary.

 

[Jimmer]

If you're using the regs for recreational nitrox dives, you don't need them O2 cleaned as crpntr133 mentioned. But the other thing that jumps into mind with me is why would the op care about your regs? Tank and valve I can understand if they are filling it with nitrox, especially PP blended, but I can't imagine some dive op giving a rat's ass about regs that you own and brought with you.

 

[PhilEllis]

Hey, if anyone in the WORLD asks you for proof that your regulators are nitrox cleaned before they will rent you a nitrox cylinder, PLEASE post on this board and tell us who it is. Thanks.

Phil Ellis
Discount Scuba Gear at DiveSports.com - Buy Scuba Diving Equipment & Snorkeling Equipment

 

[DA Aquamaster]

The green collar thing is pointless from an O2 clean perspective.

The reg may be perfectly O2 clean and warrant the collar, but then it leaves the shop and the shop owners have control over the gas that gets put through it or even an ignorant owner who thinks that maybe spraying a little WD-40 in the reg will help prevent corroison.

So in effect, all the green collar signifies is that the owner paid the shop's O2 clean tax within the last year, which means it is a revenue source not a safety measure.

The same thing applies to tank and the O2 clean stickers they have on them. At best they mean the tank was O2 cleaned within the last 12 months and that has no real relevance to what has gone through the tank since then.

Fortunately for O2 mixes at or under 40% it is a moot issue unless the shop partial pressure blends and with the inexpensive cost of a stick, PP blending makes no real sense even for shopw who do not want to invest in a membrane system.

 

[JVM4.0]

Thank you all for the relevant and informative posts. I will continue to keep my equipment cleaned according to manufacturers specs, and not worry about the collars anymore.

I'm ready!