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  1. rjack321

    If Cooper hoses are so dangerous, why does the US Navy use them for their UBAs?

    Cooper is a tire manufacturer and they make other natural and synthetic rubber products as well. They are not a taxpayer funded project or program. But you seem to just be here to argue that they are the bees knees. No matter what you say, they remain labeled "not for underwater use" Carry on...
  2. rjack321

    Why is DAN such a PITA?

    Membership and DAN insurance are two separate and distinct things. The USCG does not charge for evacuations absent some particularly egregious incompetence. They also dont generally do helicopter evacuations for DCS either. But yes the higher level DAN insurance covers medically necessary...
  3. rjack321

    If Cooper hoses are so dangerous, why does the US Navy use them for their UBAs?

    Huh? What are you talking about? The Cooper CCR hoses are labeled "Not for underwater use". That's it. There is nothing on them about use as breathing hoses or not. At least one (yes competing) CCR manufacturer (ISC) building for the Navy has claimed they were never tested in breathing...
  4. rjack321

    If Cooper hoses are so dangerous, why does the US Navy use them for their UBAs?

    The unknown issue with new Coopers is the off-gassing of not so healthy vapors. The issue with older Coopers is the wire rusting out and the hose collapsing.
  5. rjack321

    If Cooper hoses are so dangerous, why does the US Navy use them for their UBAs?

    Also I am not sure where you got the impression that DoD or the Navy are bastions of "fit for purpose" or health & safety or otherwise. They do all kinds of dubious stuff when it suits their operational needs. Everything from Agent Orange, AFFF PFAS firefighting foams, to Iraqi burn pits, and...
  6. rjack321

    If Cooper hoses are so dangerous, why does the US Navy use them for their UBAs?

    Because they say "not for underwater use" on them?
  7. rjack321

    Cave/Tech Diver Moving to PNW

    The limestone is heavily metamorphosed into a dark marble with some igneous intrusions (which are often magnetic which sucks). Much of the bedding plane is vertical or at the very least radically tilted. Depths vary A LOT. Some of the short shallow systems might only be 10m long and 1m deep...
  8. rjack321

    Cave/Tech Diver Moving to PNW

    There are quite a few (~350-400) wrecks down to 300ft in Puget Sound and Lake Washington in particular. Unfortunately, there are basically no charters going to any of them anymore. And the local knowledge to actually dive them is fading fast. That is an area ripe for "rediscovery" but only if...
  9. rjack321

    Smart-DPV controller on a Sierra

    I have a 5p7s battery (5000mah cells) in a Sierra and the Smart-DPV is indeed impressive. @Jona Silverstein should be able to answer the specifics on firmware updates
  10. rjack321

    DIR- GUE GUE Cave Sidemount course

    It's a pretty limited universe of instructors. Or you could skip the GUE course and find a FL mentor https://www.gue.com/diver-training/gue-instructors?course=59
  11. rjack321

    DIR- GUE GUE Cave Sidemount course

    Are you C2 with GUE? Where are "the caves" you're talking about? Cause "sidemount" takes wildly different forms in FL, the Riveria Maya, Cheve, and Canadian caves - and that's just in North America
  12. rjack321

    Sidemount for local, walk-in diving, for old farts.

    yeah same. It's so much easier with a 50 which can basically function as a cane
  13. rjack321

    Hollis inline CCR tank valve

    Replace the valve
  14. rjack321

    Advise for drying drysuit

    Extend the wires on some Peet's boot driers and drop them down the legs. Then hang up with a big hanger.
  15. rjack321

    Sidemount for local, walk-in diving, for old farts.

    You still have to pick up the cylinders, with a single arm, so the weight is hanging on one arm off your shoulder anyway. Then trundle up the beach. If using a (single) 72 you are better off with it on your back. 2x lp50s then SM. lp45s are no longer made but widely available
  16. rjack321

    Is CCR the right route for me?

    Then you're like me and have dozens of bailout cylinders held hostage to expensive mix fills years and years past their hydro expiring lol
  17. rjack321

    Sidemount for local, walk-in diving, for old farts.

    You still have to carry the tanks which can be awkward and difficult on even the best of surfaces. Lighter cylinders is a huge help. Lp50s for the win honestly since you can frequently leave them at the shore, walk up and ditch your BC and lead then return for the tanks.
  18. rjack321

    Nitrox stick: Measuring after compressor

    Your bypass (picture?) is probably causing more problems than solving anything. The cell can just go into the gas flow immediately downstream of the stick. The less of a "T" there is the better.
  19. rjack321

    Equipment Some excitement on Sunday morning

    When the mouthpiece is in your mouth and the reg is flopping around unattached, 99% of the time the new AOW diver is going to fail for an octo vs shoving the mouthpiece missing 2nd stage back into their lips.
  20. rjack321

    An age-old question: ways to 60m.

    More like everyone diving doing any kind of decent dive has gone CCR. But there are still folks bouncing down on air in OW. It's actually pretty common to do the Bikini dives on air since helium is even more ridiculously expensive there than normal high prices. The DCS rates on air are also...
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