US Divers steel tank restoration

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What about hydro testing, I heard new regulations are now limiting hydro testing on tanks that are to old.

The only tanks that have a stated life span and must be condemned when they reach it are hoop wrapped composite fiberglass cylinders which are not found in scuba use.
 
What about hydro testing, I heard new regulations are now limiting hydro testing on tanks that are to old.

I have pre-WW2 O2 supply tanks in my rotation occasionally, they are still being hydroed. lp72s are the same 3AA tank specification.
 
Where can one order or find this? 95% Zinc, highest I've ever heard of!
 
Thr last time I bought Gavilite I ordered directly from ZRC, just give them a call. Some dealers don't carry the whole line of products and may not have Galvilite. I recommend buying the quart can not the spray can. Roll on 3 coats with a small foam roller.
 
Need to repost these pics, I moved them to another album not realizing it would mess up this thread :/
 
These are the photos from the beginning of the thread that I inadvertently moved and cannot fix up there :/
79106D34-4601-4D74-A28E-D6369856C7CD-2017-0000018830A93526_zps289fef82.jpg
C814962F-BE98-4552-AE0D-9B19AA1527EF-2017-0000018834EECE28_zps0fec62df.jpg4EF085FD-90A4-45C6-B91F-C66CE391381F-2017-000001883CD6A48D_zpsdac5896b.jpg429E2F07-9512-4E95-B424-A5FEA36ECAD0-2017-000001884120EDEF_zpsfab490b3.jpg5CDF8E5E-D717-4B08-ABAF-D1727F77B8BE-2017-00000188458070B0_zps8110e1a3.jpg125288E8-20A6-4F6C-841B-CA625F2C715C-2017-00000188554D5778_zpsc479251e.jpg46C84D94-E0A0-48CA-BB6F-C21B983732FF-2017-00000188598B44AB_zps57bbdfa7.jpg7DA9C92B-BDBB-4C3B-BB02-2AA8E29CB72A-2017-000001885DCBF240_zpsb740060d.jpgB8A9FCBC-B93F-4C1B-959F-06C5709BEEB3-411-0000006CD860D376_zps49e5d728.jpg
 
https://www.shearwater.com/products/swift/

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