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What's your favorite set of doubles?

Discussion in 'Tanks, Valves and Bands' started by dave22387, Nov 29, 2018.

  1. EireDiver606

    EireDiver606 DIR Practitioner

    Yes. They’re very good also but I prefer the 12l for my trim.
    BurhanMuntasser likes this.
  2. Marie13

    Marie13 Great Lakes Mermaid ScubaBoard Supporter

    # of Dives: 100 - 199
    Location: Great Lakes
    Today I saw my first pair of LP50 doubles. Another diver was trying them out for the first time while I was getting my first dive on my HP80 doubles. I was surprised to see how long LP50s are and had to look up their length - about 4” taller than my HP80s.
  3. leadduck

    leadduck Barracuda

    I think it depends mostly on how tall the diver is. A short diver with long narrow doubles has them inconveniently riding on his buttocks. A tall diver with short wide doubles will be top heavy.

    There are of course many variants of steel tanks available, but the most common situation is: European steel 230bar 7l, 8.5l, and 12l are long and narrow. The 8.5l is nice for tall guys like 190cm (6'6). Whereas steel 8l and 10l are wide and short, good for divers 170cm (5'6) and shorter. There are wide short 12l tanks and they are popular for single tank diving, but not as doubles.

    It's mostly the length of the diver's torso. Divers with long legs and a short torso may prefer short tanks although being tall. Always try first before deciding.
  4. tbone1004

    tbone1004 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: I'm a Fish!
    Location: Greenville, South Carolina, United States
    @Marie13 that's one of the very nice things about them for those of us that want smaller tanks. They're the same height as Faber FX100's, and less than an inch shorter than an AL80. Quite nice for that. The HP80's are unique little tanks for shorter divers.

    When I'm choosing tanks, my priority list is as follows
    Length-needs to be comfortable and this should trump most other things.
    Capacity-you obviously need a minimum capacity for the dives you are doing. Most manufacturers have a 7.25" and 8" tank in similar lengths with the 8" tanks having about 25% more capacity.
    Buoyancy-once you sort out the above, buoyancy will dictate either a specific manufacturer, lp vs hp, etc.
  5. Marie13

    Marie13 Great Lakes Mermaid ScubaBoard Supporter

    # of Dives: 100 - 199
    Location: Great Lakes
    They worked out pretty well for me yesterday.
  6. DanaHunt

    DanaHunt DIR Practitioner

    # of Dives: I just don't log dives
    Location: Watertown, NY
    Well considering I just scooped a set of pst104's, I plan to give the 85's a rest for a while and make these my default favorite. I'm 6'5ish 300 lb, pretty close to a good fit .
  7. Degenerate

    Degenerate Nassau Grouper

    Picked these up very recently and I absolutely love them, I want more of them.
    2x7L 300 bar, roughly equal to 150cuft, more if you overfill them which is never a problem here...
    Beer for scale.

    The brown mark below the lower tank bank isn't rust, it was just crap on the surface that I have since scrubbed off.

  8. tmassey

    tmassey Barracuda

    # of Dives: 200 - 499
    Location: Shelby Township, MI USA
    The second Faber starts making LP50's in HDG, I'm buying a set. But I'd be really disappointed to buy them in epoxy, and have the HDG's come out a few weeks later... So everyone else buy up the epoxy ones!

    Or I'd buy them in epoxy used in a heartbeat, but I've never seen a set used. (OK, I saw one, but he wanted only $100 less than new -- and out of hydro! :) )
  9. Degenerate

    Degenerate Nassau Grouper

    Smaller doubles are awesome!
    I can get the redundancy of doubles for rec dives withouth having to carry a pair of fatty 12L tanks, but still have a ton of air for long dives.
    Here in Sweden we got the Aga 324 tanks in abundance, our firefighters used these for a good bit but not anymore so you can usually find them really cheap.
    They're 300 bar 2x4L tanks, I got a mate who works as a firefighter and their station is littered with them, he's been begging me to come down to the station and take some off their hands :D
    There's also a version called 326 which is the same with 6L tanks, they're not as common though.
    Only downside is there's only one DIN output (and it's located a bit awkward) so they're useless for practicing any double tank drills, but for rec dives they're totally awesome.
    Sam Miller III likes this.

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