Permanent MOD markings on tanks

[PfcAJ]

For the record, the onus is not on the buddy in the DIR system. We're all grown ups, and its the divers responsibility to know why he or she is breathing. The buddy check is an additional layer. A verification. It is not the sole method.

Looking at the MOD sticker before you put the reg in your mouth is the only sure fire way. Matching gas to MOD is done pre-dive, on the surface, at the fill station. A tank doesn't leave till it has been analyzed and the analysis matches the MOD, and a tank doesn't get a reg without a current analysis sticker. Period. Colored regs, MOD tags on hoses, all go right out the window the second you need to borrow something. The MOD sticker is the only fixed thing in the entire equation.

[Pavão]

I put the analyser at the base of the tank if the tank needs analysing, so when I pick the tank up I can see the analyser and remember to use it.

I do not agree though on the "theories" (i.e. DIR...) whereby the onus is placed on the buddy to verify the gas the other diver is using.

The decision to dive is of one person only - the diver.

The stuff which goes in the mouth is for one person to decide and put it in the mouth - the diver.

If my buddy breathes O2 instead of 12/88 - he made a mistake and it has got nothing to do with me. Same if I were to make that mistake - it is my responsibility to make sure that what I put in my mouth is good for me.

So, in the case of Carlos (the hypothetical diver I made up in this thread), if he is my buddy and puts in his mouth an O2 reg instead of an Air reg - his mistake and no moral responsibility on my part. I have to worry already about what reg I am putting in my mouth, that I should not have the additional task loading to check/baby-sit everybody else.

Now, I see all the times people strapping on 3 tanks and putting behind and around their neck 3 hose and 3 regulators and I wonder - how the hell this guy does not make a mistake and take the wrong reg? (if he does, his problem for sure).

So, what I do, because I make all sorts of mistakes, like forgetting to put my fins ON and start the dive with no fins (fully loaded with 4 tanks, a rebreather, a scooter, and a back-up scooter...), I put a woman's short nylon sock on the O2 2nd stage.

It protects it, and if I put the O2 reg in my mouth by mistake it will feel "different."

Wow, I didn't know this mentality still existed

[bletso]

+1
Not everybody lives nears caves and has lots of tanks.
I'm not at all worried about duct tape coming off.

I have never had duct tape come off by itself. I definitely have a finite number of cylinders.

[Garth]

Wow, I didn't know this mentality still existed

Which part of this do you agree or disagree with? I don't think I'm quite as far as "everyone for themselves" but I also don't analyze my buddies tanks... I let him do that.

[LiteHedded]

I have never had duct tape come off by itself. I definitely have a finite number of cylinders.

i have
it doesn't stick to shot blasted tanks

[mer]

i have
it doesn't stick to shot blasted tanks

or in tannic water

[Jay]

I am in the old school pool.

My only O2 tanks are two al 40's marked O2, are only used for pure O2, and have either a specific sherwood or OMS reg on them.

Deco tanks from 130' up are not permanently marked but have current lablel and mix and only use a dacor reversible second stage on them with sherwood O2 cleaned first stages that can be used on the O2 tank in an emergency. (The switch would be made UW only if necessary. In other words I would not start a dive with the same type of reg on my O2 and 130 or less bottle)

Stage tanks are labeled with current mix and only get an apex stage reg.

Back (or side) gas is labeled current mix and only get my primary use regs on them.

I have enough tanks and regs such that on my worse day I know what reg is in my hand. Could I still screw it up? Of course I could.

[gianaameri]

or in tannic water

or on any tank.

It sticks, but then it can come off, and it does come off (if you are a cave diver and actually cave dive).

The only way to make it permanent is to take more than a full turn around the tank so that the Duct/Gall tape sticks on itself and is tight around the tank...

BUT y'a all missing the point:

What is the point to use Duct/Gall tape if you can write with a black permanent marker on the tank itself?

Are people afraid the tank gets hurt if you write on it directly?

Somebody had the not so bright idea to use Duct/Gall tape once upon a time and nobody has since then asked "Why? What is the point?"

[Garth]

or on any tank.

It sticks, but then it can come off, and it does come off (if you are a cave diver and actually cave dive).

The only way to make it permanent is to take more than a full turn around the tank so that the Duct/Gall tape sticks on itself and is tight around the tank...

BUT y'a all missing the point:

What is the point to use Duct/Gall tape if you can write with a black permanent marker on the tank itself?

Are people afraid the tank gets hurt if you write on it directly?

Somebody had the not so bright idea to use Duct/Gall tape once upon a time and nobody has since then asked "Why? What is the point?"

You lost me there...

Write on the tank? My luxfer would never forgive me

[gianaameri]

You lost me there...

Write on the tank? My luxfer would never forgive me

Take a frigging black permanent marker and write on the tank.

Give me a couple of moms. and will post some pics.