Page 1 of 6 123 ... LastLast
Results 1 to 10 of 56

Thread: What to do with 1987 aluminium tank

  1. #1
    TadPole
    Join Date
    01/09/2011
    Location
    Prattville Alabama
    Age
    49
    Posts
    0
    Images
    1

    What to do with 1987 aluminium tank

    I have a 1987 Aluminium tank that looks brand new but was told that it could not be filled. What are my options

  2. #2
    Guppy
    Join Date
    11/13/2007
    Location
    McConnelsville, Ohio
    Age
    62
    Posts
    187

    1987 Aluminum Tank

    Possibly donate to your friendly, local scuba instructor who could have it cut in half, after draining, to use as a teaching aid. Show what the inside of a tank and valve assembly looks like, possibly show corrosion. I have used cutaway fire extinguishers, fire pump parts, etc., as props. Really helps students understand how things work......

    If you can get a great white to put it in his mouth and shoot it with a high powered rifle, you get a great special effect.

    Did my ST order..............Posted smarta** comment on board...........time for my nap.
    Adjunct Staff at The Captain Morgan Rum Research Facility and Taste Testing Lab.

  3. #3
    Grouper
    Join Date
    01/27/2008
    Location
    United States
    Posts
    250
    Quote Originally Posted by Fireplug View Post
    If you can get a great white to put it in his mouth and shoot it with a high powered rifle, you get a great special effect.
    This is really your only option. Sell the video of this to TMV and make some $$$

  4. #4
    Cylinders from 1988 or older are subject to sustained load cracking (SLC). What happens is the cylinder develops cracks over time and at some point it will peel apart like a banana but very violently.

    The longer the cylinder has been stored full the higher the risk of SLC. Many shops will not fill these cylinders because they their believe there is no safe way to use them or they don't fully understand SLC. Because your cylinder is older than 1988, it is most likely made from 6351 alloy. This is the alloy which is subject to SLC. In 1988 Luxfer switched to 6051 alloy, which does not suffer from SLC. They also have 6351-T6, which should be fine as well.

    Since your cylinder is most likely made of 6351 alloy, it will fail due to SLC at some point. SLC is not detected by regular hydrostatic testing or visual inspections. PSI, a cylinder inspecting company, developed a procedure called eddy current testing or Visual Plus. When a PSI trained inspector, with the proper equipment, does a visual and eddy current test, they will stamp the cylinder with a -VE after the hydrostatic test date. On a visual inspection they will note eddy current testing on the visual inspection sticker.

    If you get a VE inspection and it passes then the cylinder is still safe to fill. However, shops may still ignore this and refuse to fill the cylinder. In my country, I don't know anyone who will do a VE test. So no shop in my area will fill them and we just scrap them. If you can find a shop that will do a Visual Plus inspection on the cylinder they should also be willing to fill it, if it passes.

    Generally speaking, if you do things like weekend trips and not all sites will fill the cylinder, it might not be worth getting it Visual Plus inspected every year. Additionally, the extra cost of getting it VE tested might be more than just buying a new cylinder after a few years.
    This signature left intentionally blank

  5. #5
    Guppy
    Join Date
    04/29/2010
    Location
    United States
    Posts
    194
    recycle it, maybe pick up some cash with the way the metal market is now

  6. #6
    TadPole
    Join Date
    08/28/2011
    Location
    Toronto ON
    Posts
    0
    Is selling it off to paintball enthusiasts an option?

  7. #7
    Shark Zeagle Eagle's Avatar
    Join Date
    08/25/2008
    Location
    Willis, TX
    Posts
    3,172
    Images
    12
    It would make one heck of a lamp for your man cave.
    --Zeagle Eagle

  8. #8
    Grouper
    Join Date
    08/25/2010
    Location
    Upstate New York
    Posts
    372
    Cut off the bottom, hang it, and have a great gong.

  9. #9
    Barracuda
    Join Date
    04/29/2010
    Location
    Glenford, Ohio
    Age
    48
    Posts
    1,308
    Quote Originally Posted by nooykt View Post
    Is selling it off to paintball enthusiasts an option?
    Not really as they would have the same issues with fills.
    any puddle...anytime...anyplace!

  10. #10
    TadPole
    Join Date
    03/23/2011
    Location
    Rowlett, TX
    Posts
    4
    Catalina tanks were never made of the "bad alloy"

Page 1 of 6 123 ... LastLast

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. Replies: 11
    Last Post: 12-13-2010, 18:45
  2. Aluminium vs. Steel
    By mzbdiver in forum BC's - Buoyancy Compensators - Stab Jackets
    Replies: 9
    Last Post: 06-28-2010, 14:57
  3. Tank to Tank Equalizer Din With Gauge
    By ScubaToys Larry in forum New Product RSS
    Replies: 0
    Last Post: 05-14-2010, 18:10
  4. Replies: 76
    Last Post: 08-20-2009, 17:36
  5. why does one tank make my mouth so dry, but a different tank doesn't?
    By Ladyvalea in forum General Scuba Training Questions
    Replies: 7
    Last Post: 10-28-2008, 22:05

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •