Mailing List Archive Mailing List Archive
> Subject: Re: O2 CLEANING, GAS BLENDING, ETC.
> Date: Sun, 17 Aug 97 10:19:51 -0400
> From: Jim Cobb <cobber@mi*.co*>
> To: "Ted Green" <scuba@md*.co*>, "Tech Diver"
<techdiver@aquanaut.com>
> A question: What happens, chemically, when that 1% of O2 is introduced to
> make your mix 39% to 40%? Does the nitrogen/oxygen change form? What does
> actually happen to make this instability take place? Could it be that 40%
> is just an arbitrary number someone pulled out of their ass like the 130'
> "sport diver limit"?
Jim,
Most people assume the "sport diver limit" refers to no decompression
air dives, or are you planning on changing that also? I believe NOAA
and / or the Navy came up with the 40% rule. Since it was for their
own use, I imagine they did some testing , but I would like to
believe they did it just to piss you off!
>
> With this trick of yours, the cascade loaded with 39%, who are you trying
> to fool? The various gov agencies? The divers? Yourself? If you believe
> so strongly in the 40% rule, why don't you, for the sake of the children,
> throw in an extra safety margin and put 35% or 33% into your cascade
> system? I mean what if the gov made a mistake (imagine that!) and the
> actual percentage that nitrox suddenly becomes volatile is 38.2345% I
> mean you may be endangering children as we speak!
Jim,
Your obviously one of those "clowns" who wants me to Air top
your tank based with Oxygen. If you want to "play" gas blender, spend
some real money, buy an air compressor and do it all yourself! Of
course the reason your playing this game to start with is your to
cheap to buy a tank of Nitrox. I guess you spent all your money on
that capillary depth gauge and Timex watch! At least the people like
George Irvine who gas blend for themselfs or their organization, do
the entire fill themselfs, analyse it, take responsibility for it,
and don't play a bunch of games to save $5!
>
> Rather than acting like sherlock holmes and trying to spoof your
> customers by bleeding off gas (what bullshit, if you ever did that to me,
> I would never darken your door again) why dont you have the rules posted
> and test the 02% of every tank that enters your shop which has more than
> 0psi in it?
Jim,
70% of what we pump is Nitrox, and we empty those tanks to
start with. The balance of my customers couldn't care less whether I
empty their tanks or not. But then they not trying to play games with
me!
> If you feel so strongly about the rules, would this not be
> the right thing to do? If you say that it would be too burdensome to do
> this, is what you are saying that profit is more important than the lives
> of your customers? How hypocritical!
Jim,
You are correct, the lives of my customers are the most
important thing! When they ASK to have their tank filled with Air,
they GET a tank full of Air. When they WANT Nitrox or Trimix,
they ASK for it!
> Or could it be that deep down you
> know these rules are pretty much bullshit and you are just going through
> the motions?
Jim,
The rules are up for debate, but theirs no doubt in my mind
about you!
Ted
Ted Green (owner)
Tidewater Aquatics (Dive Store)
Salisbury Maryland USA
TDI IT #029
SSI MI #178
The world contains but three types of people:
1. Those who make things happen.
2. Those who watch things happen.
3. Those who wonder what happened.
--
Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'.
Send list subscription requests to `techdiver-request@aquanaut.com'.
Navigate by Author:
[Previous]
[Next]
[Author Search Index]
Navigate by Subject:
[Previous]
[Next]
[Subject Search Index]
[Send Reply] [Send Message with New Topic]
[Search Selection] [Mailing List Home] [Home]