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Old Yellar Tank Weight

Discussion in 'Vintage Equipment Diving' started by aquacat8, Apr 16, 2018.

  1. aquacat8

    aquacat8 Solo Diver

    # of Dives: 100 - 199
    Location: Savannah, GA
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    465D0D48-F432-4D0C-A1EC-CEC4172AE0CA.jpeg Has anyone seen/used anything like this? I bought it recently thinking I could use it to turn an AL80 into a steel tank weight wise... or something. (Slapping own hand—must resist dive shop used gear shelf!)
     
  2. John C. Ratliff

    John C. Ratliff Instructor, Scuba

    # of Dives: I'm a Fish!
    Location: Beaverton, Oregon
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    I think this dates back to before the AL80 to the AL72, which was a "floater" at about four pounds positive for each tank. I will post a photo of me wearing twins made of these floating tanks, with a PVC tube in the middle holding 8 pounds of weight.

    SeaRat
     
    northernone and aquacat8 like this.
  3. BRT

    BRT Orca

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    What does it weigh? In warm water I need most of my weight around the top of the tank to keep my head down without moving. I string weights on the top bcd strap and the DM's always want to argue about it..
     
  4. aquacat8

    aquacat8 Solo Diver

    # of Dives: 100 - 199
    Location: Savannah, GA
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    I think it's 6lbs of vintage lead LOL
     
  5. BRT

    BRT Orca

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    If I had not found a workable solution I'd be trying to talk you out of it.
     
    aquacat8 likes this.
  6. aquacat8

    aquacat8 Solo Diver

    # of Dives: 100 - 199
    Location: Savannah, GA
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    Interesting @John C. Ratliff I’d love to see the photos
     
  7. aquacat8

    aquacat8 Solo Diver

    # of Dives: 100 - 199
    Location: Savannah, GA
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    It just seems handy somehow
     
  8. John C. Ratliff

    John C. Ratliff Instructor, Scuba

    # of Dives: I'm a Fish!
    Location: Beaverton, Oregon
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    aquacat8,

    Below are two photos showing me using the twin AL 72s, which were floaters. I believe they were rated at 2475 psig, and were a full 72 at that rated pressure. The steel 72s were only at 72 cubic feet of air when at a 10% overfill, or 2475 psig. But these steel 72s were stamped at 2250 psig. So unless they had a "+" behind their stamp, they were only about 66 cubic feet of air. On these twin AL 72s, you can see the eight 2-pound weights were contained in the PVC pipe on the back. These weights were originally made for a Mar-Vel integrated weight pack for single tanks, and were 2 pound each, about an inch and a half in diameter, and three or so inches long.

    These photos were shot in Clear Lake, Oregon (headwaters of the McKenzie River), and I have a very special wet suit, which incorporates a BC into the back panel of the wet suit. The white on the wet suit's back is a sandwich of two neoprene layers, forming a bladder I could use as a BC. It worked very well, and was designed by Bill Herder of Deep Sea Bill's in Newport, Oregon in the mid-1970s. This photo also dates to that era. These AL tanks had just come onto the market, and people did not like them because of that "floater" situation.

    John
     

    Attached Files:

    northernone likes this.
  9. aquacat8

    aquacat8 Solo Diver

    # of Dives: 100 - 199
    Location: Savannah, GA
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    Oh cool old photos @John C. Ratliff ... and a very interesting approach to a BC haha no tacoing there!
     
    John C. Ratliff likes this.
  10. jadairiii

    jadairiii Solo Diver

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    This is not vintage. Halcyon/Brownies Dive shop sold them in the mid/late 90's as a trim weight for their single wings. Weighted STA's were better and didn't give you that feeling of it wanting to roll you. Plus, they were a PITA when switching tanks between dives on a rocking boat.
     
    John C. Ratliff and aquacat8 like this.

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