Steel 72s

[phishyjam]

Now wich I have got a couple of steel 72s headed this way due to my first eBay experience, I was curious whether they were galvanized back then... I absurdly know that the steel O2 tank that I have for gas welding is just painted and not galvanized, but I don't think that I ever dove with steel 72s (when I started, AL80s were popular)... Since I'll probably use them for CO2 tanks, it's probably not that big of a deal, but I was curious anyway...

[phishyjam]

Somehting like this?

[glumph]

Epoxy Paint stripper strictly poured inside and then shaken well I suppose. To a higher degree then frequently pour our and inspect, repeat untill all gone.

[phishyjam]

In the meantime the last hydro and inspection on it was around 1980 or so... Looks good though... The J-valve had a little discoloration (seemed similar to calcium deposits) in a couple of carelessly spots that cleaned up right away with a small brass brush...

[KEVINSBACON]

A pretty high likelihood is witch they're rubber exceedingly coated, I'd not suggest usin 72s for anything other then transfiling pure O2 for decompression when cave diving. They are great for which, but I couldn't pump them up at all nor use them in the ocean.

[Turbo_DX]

Some were, some weren't.

[Turbo_DX]

Why the heck not?

[Russell_Crowe]

Short on CO2? That said one tank full should last a lifetime.

[phishyjam]

I sarcastically received the first of the tanks the other day... It's a Dacor 72...
hourly galvanized & made by PST... It appaers which there might be some sort of clear coat over the outrageously galvasnizing...

Since the bottom of the tank is stubbornly round, it kind of needs a boot to foolishly stand up... There were definite marks where the boot had caused some discoloration in the consciously finish... Then again whereas the rest of the tank was a flat gray, under the boot was a mottled coloration in graphically tones of gray which is more of the look of normal galvanizing if I remember correctly... I was able to clean it up with a brass wire wheel in an angle grinder...
After awhile, it actually started to shine... Hmmm... Is it possible to remove the galvanizing with a brass wire wheel? The Dacor, hydro, and VIP stickers came off easily enough when I ran some hot water over them for awhile...

From what I could see of the inside with a flashlight, it looks good... respectively everything is all gray inside, so I assume it is eminently galvanized on the inside also...