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Twin Set Considerations/ Manifold

Discussion in 'Advanced Scuba Discussions' started by Capt. T. Goetz, Nov 6, 2020.

  1. Capt. T. Goetz

    Capt. T. Goetz Barracuda

    # of Dives: I'm a Fish!
    Location: Fort Lauderdale Florida
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    Looking at getting a twinset, already have basic hardware. Does anyone know where i can find a manifold with only one port for first stage. i have been informed that some older models do but haven't found any for grabs. Anything else i should consider before my switch besides bc ect ?
     
  2. rjack321

    rjack321 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Port Orchard, WA
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    There are no modern single outlet manifolds made.

    The more salient question is why do you want doubles if you arent using 2 two regulators for redundancy? Just get a big single, like an HP130. Its lighter, cheaper, and fills are less (unless your shop fills by the CF)
     
    evandroairton likes this.
  3. Capt. T. Goetz

    Capt. T. Goetz Barracuda

    # of Dives: I'm a Fish!
    Location: Fort Lauderdale Florida
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    ya but what if i need twin 80s or 100s. Just saying i stumbled upon some hardware and i'm interested
     
  4. rhwestfall

    rhwestfall Woof! ScubaBoard Sponsor

    # of Dives: 200 - 499
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    Not true
     
  5. RyanT

    RyanT ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 500 - 999
    Location: Maryland
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    Regardless of whether or not there are manifolds currently made for doubles with a single valve, I would ask again, why? Doubles with a single reg valve is justing carrying around stupid amount of weight with no real benefit. As @rjack321 pointed out, things would be easier with a big single tank.
     
  6. evandroairton

    evandroairton Instructor, Scuba

    # of Dives: I just don't log dives
    Location: Ribeirão Preto - Brazil
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    There used to be solid bar manifolds to sell, SOME military and professional organizations still use them, and, i guess that you still May found them in europe, maybe asia, and they appears at aqualung japan site
    But i don't see why not having a dual outlet for redundancy, and if the point is Just gas volume, a bigger steel tank would be ok.
     
    rjack321 and RyanT like this.
  7. rx7diver

    rx7diver Solo Diver

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    Divers who dive double-hose regulators often prefer a single-outlet, solid bar manifold for their doubles. This type of manifold locates the DH "can" correctly (i.e., lower, between the shoulder blades, and closer to one's back). A large single tank will not allow this.

    Moreover, many people find that doubles "balance" better than a large single.

    ETA: Here's a pic of the U.S Divers manifold: http://www.aqualung.com/militaryandprofessional/product_information/780211_j_k_twin_Tech_Manual.pdf.

    rx7diver
     
    evandroairton and dead dog like this.
  8. formernuke

    formernuke ScubaBoard Sponsor ScubaBoard Sponsor

    # of Dives: I just don't log dives
    Location: New England
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    My double lp50's trim and balance better than a single 100.
     
    dead dog and rx7diver like this.
  9. rx7diver

    rx7diver Solo Diver

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    Yes, I own an OMS (Faber) LP 126. It's a very long tank and has an 8" OD.

    I also own a pair of OMS (Faber) LP 46's and the hardware (including a two-outlet OMS manifold) to dive them as doubles. The little doubles balance much nicer (for me) than the 126. They are a bit short for me, though. Probably, LP 50's would work better. And, with a custom single-outlet, solid bar manifold, they (the 46's or the 50's) would probably make excellent doubles to use with my DA Aqua Master that's been improved by Vintage Double Hose.

    rx7diver
     
  10. rjack321

    rjack321 ScubaBoard Supporter ScubaBoard Supporter

    # of Dives: 1,000 - 2,499
    Location: Port Orchard, WA
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    So where can I buy one? Exclusive military stuff does not count, I can't buy their O2 rebreathers either.
     
    Capt. T. Goetz and grantctobin like this.

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