How to clean 2nd hand tanks

part 2 of this topic - basically on request.
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[@71sagittarius]

Achim, please don't listen to what other people say or comment. Don't get angry or so...
Your videos and advises are brilliant and it's up to each one of us to accept them or not, learn something or simply switch to different source. Just keep doing whatever you like and you are so passion about. Thumbs up!

[@DavidMaruca_]

Enjoyed this video very much. I do enjoy giving basic service work a try on my own before shipping things off. Started with my bicycles and then some automotive, then started building dive harnesses and now working on learning more about regulator and valve service. I have also had people roll their eyes at me and become worried. It is what it is. I cannot stop them from becoming worried. All I can do is try my best, and when it's time to admit that I'm in over my head, ask for professional help.

[@floffywombat9109]

Personally I will never let a Dive shop repair or do any maintenance on my regulators or Tank valves, because I have had very bad experiences in the past with that, so that is a no go for me, because I have seen how many of these so called “technicians” are educated on service, but of course there are some good ones (especially in the old dive shops ) but unfortunately that is not the norm.
I have been so lucky to be educated in service of diving gear through the military, and the course was very thorough and expensive, and tailor made for our needs, but paid for by the army, so I was very happy for that!
We even stripped a Compressor, repaired it and assembled it again, and even made air quality testing with the Dræger glass tubes afterwards.

[@scottholmberg7695]

We use nuts and bolts on a tumbler we built from a free treadmill variable speed motor. Vinegar and blown out immediately with the compressor so no flash rust. Great video.

[@marcelohernandez7215]

Thanks Akim! Great info, here in Mexico I O2 clean my tanks with "Simple Green" organic soap, wash them with fresh water and then let them dry. Sometimes I add a little bit of isopropylic alcohol so moisture isn't kept inside....

[@mikkosport2300]

Whenever you disassemble something you are not (very) familiar with it is worth to take photos before each step. You can then use the photos as reference when trying to assemble the system again. This trick has saved me several times...

[@floffywombat9109]

About the sand blasting..
Here in Denmark 🇩🇰 there is a big commercial Diving Company, and i talked with a technician there who explained to me how they sand blasted their big commercial tanks and regular Diving tanks that they are using on their Diving ships, these tanks are for different gases used in their Commercial Diving operations all over the world, and they are packed in a way so they can lift them on board the ship with a crane 🏗
He explained to me, that they have a long special sandblasting pipe that are blasting in different angles, and a return pipe with suction, because it will else fill the tank very quickly with sand, even in a 50 liter 😄
Imagine if they had to “roll” all their their tanks from the big tank packs on the ship! That would be an almost impossible task to do, compared to the sandblasting method!

[@luresmaking]

Nice 👌👏

[@werner729]

Great video. Flavoured breathing gas, maybe a gap in the market. Maybe also a field of science to find out more about if and when how our sense of taste changes under pressure.

[@thomulcahy]

I use denture cleaning tablets to clean my bcd and they do a good job

[@jannikflk9846]

Thanks Achim. Could you make a video on Painting Scuba tanks? Theres not a lot of information out there and theres people telling you to sandblast the Paint of, so...
i think Paint remover is best.

[@valens7707]

I knew my Coca Cola habit would become usefull eventually........

[@divexplore71]

Interesting use of your old tanks. 👍💦

[@josephdracula7487]

👍🤿😎!