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  1. CephBirk

    Download dive data from Sherwood Profile computer?

    Thanks for the suggestion. But neither Sherwood's native software or DiverLog seem to support the Profile model...
  2. CephBirk

    Download dive data from Sherwood Profile computer?

    Anybody know what software I can use to download dive profile data off my Sherwood Profile dive computer? I have the USB cable but cannot figure out appropriate software.
  3. CephBirk

    LP valve?

    I'm looking for a diver holding the end to be able to regulate flow instantaneously. I'm working off this design at the moment:
  4. CephBirk

    LP valve?

    Needle valve! Of course! Thanks!
  5. CephBirk

    LP valve?

    Hello all. I'm working on constructing a homemade airlift for a scientific diving project. Anybody out there have advice on where I could find a valve to regulate the output flow of gas from an LP hose (~135 psi)? I'm not looking for just an on-off valve, but rather something that will help me...
  6. CephBirk

    What service kit for this octopus edition?

    @inka , thanks! I'm assuming HP and BP are for the first and second stages, respectively? Out of curiosity, what do these acronyms mean in spanish?
  7. CephBirk

    What service kit for this octopus edition?

    I have a Legend octopus (pictured below). What is the proper service kit for this edition? Is it the old 900012 or the new 129798 or something else entirely? Thanks! Legend octopus by CephBirk posted Nov 24, 2020 at 11:20 AM
  8. Legend octopus

    Legend octopus

  9. Pics for posts

    Pics for posts

    Pics for posts
  10. CephBirk

    Latex seal thickness for SI Tech QCS ovals?

    I am looking to get a drysuit with SI Tech QCS oval rings. I am wanting to put G-Dive latex seals in them (https://www.divegearexpress.com/amfile/file/download/file/19/product/7366/), but am unsure on the appropriate thickness. Anyone have experience with these kind of seals in QCS rings? SI...
  11. CephBirk

    Flex hose for backup 2nd stage on a necklace?

    Hmmm, I'm wondering if some electrical tape or a hose protector right where it makes contact with your head might help...
  12. CephBirk

    Flex hose for backup 2nd stage on a necklace?

    Hello all! I've got a long-hose configuration and keep my backup 2nd stage around my neck on a necklace. I've always used rubber hoses but recently have been wondering whether a flex hose may be preferable for the backup 2nd stage. Right now I've got a 22" rubber hose on a single tank...
  13. CephBirk

    C80 aluminum cylinders? Are they good as doubles?

    Is anyone still manufacturing C80 aluminum cylinders? Catalina seems to be done making them? I am looking into getting a set of doubles and I found one C80 for a very good price, but I'm concerned about finding a matching one. I like that the buoyancy characteristics are much more similar to...
  14. CephBirk

    Where to buy a p-weight in the USA?

    Anybody know where I can buy a P-weight within the USA? The only things I can find online are in the UK and they don't ship to the USA.
  15. CephBirk

    Looking for buddy for diving Lake Marburg near Hanover, PA

    I'm looking to dive Lake Marburg near Hanover, PA sometime in the next month and looking for a buddy. Any interested parties?
  16. CephBirk

    Why the cap on tanks?

    Is there any particular reason people keep the little rubber caps on their tanks? Is this just a convenience for dive shops as a way to indicate whether a tank is full or not that just spills over to divers who own their own tanks? Especially for a yolk valve, I don't see much harm in letting it...
  17. CephBirk

    Anatomical reason I can equalize without pinching nose?

    Thanks! This is great info!
  18. CephBirk

    Unusual cuttlefish behavior, stinging itself on anemones

    My guess is that this is a senescent male. After mating, the males start to die and often exhibit strange behavior. The twitching arms are definitely strange and it looks like the undulating fin movements are a bit strange too... speculation from me too but that's my best educated guess (I'm a...
  19. CephBirk

    Anatomical reason I can equalize without pinching nose?

    I am able to equalize without pinching my nose (and without swallowing, turning my head, or any other means). I just do the same motion as when pinching my nose and it works. I've heard of others that can do this too. What is going on anatomically that lets a person do this? Is there a muscle...
  20. CephBirk

    Solutions for alternate second stage hose length issue

    I just switched over to a long-hose configuration and am LOVING it! :yeahbaby: I do have one issue though that I'd love to find a solution for. My alternate second stage is on a necklace and lays in a nice position on my chest when not in use. It's on a 22" (56 cm) rubber hose. Problem is that...
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