how to check 2nd hand scuba tanks
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- čas přidán 8. 06. 2024
- How to open and inspect 2nd hand scuba tanks.
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It's important to understand about "sustained load cracking" with the old 6351 alloy. Especially with these old luxfer alloy tanks.
Just started "hoarding" some tanks so thank you for the useful tips regarding inspection.
I really like your content ! 👍👍👍👍👍
We have a local Hydro testing facility in a Civil defense department, and they had an accident once, and the technician told me that they hydro tested a Tank with 3/4 treads with a M25x2 test valve and it flew up in the ceiling when the pressure was about 130 Bar!
You could still see the hole in the ceiling from the impact of the valve😄
For cleaning tanks I use MAXI 3 Soap and it is very effective in removing residue from oil, grease and other things and then rinse thoroughly with clean hot water..
If you need to remove some rust first you can tumble it with small stainless steel screws (pointy self driving ones I don’t know the proper English name)
Very interesting.
But don’t trust professional dive service with 20 years experience and TÜV in the Munich area.
Costed me several teeth, broken jaw, disrupted ear drum 13 years ago
Technician put a M25 into a DOT cylinder.
It exploded after 1.5 years while unloading.
Luckily the bridge to a lot of force before it broke
Took 5 years in front of court
Do everything myself since then
I really appreciate this kinda of content! )) - Im just in the process of buying secondhand tanks here in the UK - but getting them serviced professionally... Still I have a curiosity into the process, and regardless love to have the skills do do myself if ever required! Thanks!
This is great content. Thank you, sir!
Thanks for an interesting video Achim. On a similar topic: Could you please make a video about your thoughts and experience regarding oxygen cleaning tanks/valves and regulators? What's your take on that topic and how often you really should do it, as long as you fill from good modern filling stations and dive shops.
Achim, why do you have a microphone on t-shirt, when sound is recorded from camera microphone? It sounds like you are in barel and only thing that is audible crystal clear is chirping of birds. I had really hard time understanding what you are saying.
Excellent video
Such lovely birds
Hey Achim,
super Erklärung!
Thema Mikro: Es ist vielleicht "einfach" die falsche Tonspur ausgewählt? Als die Kamera nahe bei dir war (z.B. 6:33), war alles wunderbar. Das passt für mich dazu, dass das Kamera Mikrofon aktiv war und nicht das Lavelier Mikrofon am T-Shirt.
It's been a while since last time we saw you
Great Video thank you very much!
I would be highly interested in how to o2 clean my valves and tanks.
And a question, as soon as you empty the tanks and oben then, how do you be sure that there will get no moisture in it and let it corrode even more especially on stell tanks?
Thank you!
Hallo Achim,
Dein Mikro hat die falsche Richtcharakteristik, nämlich keine, weil es Omnidirektional aufnimmt.
Das bedeutet Schall aus allen Richtungen wird (nahezu) gleich laut aufgenommen oder bewertet, wie man in der Fachsprache sagt.
Du brauchst ein Lavalier Mikrofon, welches eine Richtcharakteristik Niere oder besser noch Hyperniere (schon mal auch 'Superniere') hat, damit die Umgebungsgeräusche weitgehend ausgeblendet sind.
Da allerdings ist die Position UND Richtung der Kapsel Richtung Mund wichtig!
Tip: Mache einfach immer eine kurze Testaufnahme und höre das mit Kopfhörer ab. Im einfachsten Fall reichen zum abhören gute Headsets (zB. vom alten iPhone noch mit 3,5mm Klinke) aus.
ERGÄNZUNG: Nachdem ich mir das Video komplett angehört habe, muß ich feststellen, daß das Kameramikro UND Dein Mikro beide aufgenommen haben, denn man hört Marko atmen (was stört) und laut auch Kommentare sprechen.
Falls Du Fragen hast, oder Hilfe brauchst melde Dich.
Liebe Grüße aus dem Wuppertal >Lutz
In Switzerland, official testing is mandatory, also for private persons, provided you want to transport your tanks in a car (-> Verordnung Beförderung gefährlicher Güter auf der Strasse). I guess this might be similar in EU-countries. Also, many dive centers will refuse filling without valid inspection marks (happened to me in Italy).
Same in the USA. SCUBA cylinders are regulated by the Department of Transportation - "Transportation" being the operative word here 😊
Thanks for sharing Achim. I am a certified cylinder inspector/valve technician here in the United States. Cannot stress the importance of this subject matter enough.
We do hydrostatic testing every five years, and require an annual visual inspection every year. A sticker is placed on cylinders to indicate month and year of annual inspection.
If you purchase a used cylinder? Please bring it by our shop so we can help you verify it is safe and appropriate to your application? Please?
Thanks. You realized I am in Germany and not in the US?
@@CoastalDevelopment Yes. The need for inspection is universal. That is why I am sharing how it is here in U.S. by law.
Can anyone else hardly hear? Mostly hear birds and a dog
Cannot hear you , must be something wrong with microphone
Too difficult to listen with a shrieking dog