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  1. DevonDiver

    Steel tanks vs. Alum.

    Not to disagree, but the rest of the world doesn't seem to face those issues. I know plenty in SE Asia that ordered directly from Poland. I'm assuming that most sidemounters and cavers are active on social media, groups and forums. Hard to believe they wouldn't have heard about XDeep over the...
  2. DevonDiver

    Steel tanks vs. Alum.

    XDeep make the best solutions for those who'd be using both steel and aluminium tanks. Many 'Florida style' (steel tank) rigs don't deal with aluminium very well. Lack of spine adjustment, no front/rear D-rings, inability to focus lift and weighting over the hips and inappropriate bungee...
  3. DevonDiver

    Diving with a pony tank - bouyancy questions.

    There's some specifications here: Cylinder details. And you can Google to find most manufacturers specifications, which include in-water buoyancy characteristics at varied gas pressures. Aluminium tends to be the popular choice amongst tech divers.. it contributes better to the balanced rig...
  4. DevonDiver

    Considering a Dive - Physical Condition

    1. You can download a copy of the RSTC medical questionnaire and take it to your MD. This will guide your MD on the relevant hyperbaric issues. Download: https://www.padi.com/documents/padi-courses/2.1.5%20rstc%20medstate%20v201.pdf 2. Medical advice should only be sought from your MD...
  5. DevonDiver

    Advanced Deep Dive Fail

    Another key issue that's commonly overlooked, and often not educated, is that holding a regulator mouthpiece in your mouth can often also cause skin creasing below the nose. That, in turn, can allow water ingress at the base of the mask when diving. When trying on masks... perform the 'suction...
  6. DevonDiver

    In-water recompression to decompress - what are your thoughts?

    That sounds like omitted deco, rather than IWR. Was the victim diagnosed with DCS prior to re-entry into the water?
  7. DevonDiver

    Question for tropical divers: Gloves or no gloves

    There's other reasons to wear gloves, other than to empower bad environmental practices. Dive centres should address the cause, not the symptoms. The cause lays in inadequate training. For what it's worth, I always use gloves. My preference is for 3M Comfort Grip work gloves. Very thin...
  8. DevonDiver

    oms wings

    You don't seem to quite understand the word "facts". o_O
  9. DevonDiver

    GUE Cave Sidemount is a thing now?

    It's easier to dismiss it as that, than accept a personal void in knowledge and capacity. Not to say it's wrong that some divers don't feel a need for sidemount - just that dismissing the unfamiliar is the intellectually limited response of choice by those with a fragile ego to protect. It's...
  10. DevonDiver

    Suggestion Make Equipment forum a “Flame Free Zone”

    Why not simply put a separate equipment forum into the new divers area? Let divers choose their appropriate zone (beginners, advanced or tech) and let debates occur at an equally suitable level of dialogue. IMHO, 90% of the problems on this board stem from people getting engaged in debates at...
  11. DevonDiver

    Advanced Deep Dive Fail

    Build comfort, before adding more stress and challenge to your dives. You learned something valuable on that AOW deep training dive.... the lesson being that you should dive within your comfort zone and not to underestimate the psychological stress that diving can create. The primary reasons...
  12. DevonDiver

    RAID Advanced Wreck - Course Video

    A short video illustrating the RAID Advanced Wreck course. This course was held in Subic Bay, Philippines during March 2018. The RAID Advanced Wreck course is a recreational wreck penetration course, the prerequisite is just AOW diver (and aged 15+). Training can be conducted using sidemount...
  13. DevonDiver

    Why the hate for weights on AL80s?

    The historical context to this is that back when 'mainstream' agencies first introduced sidemount courses (circa 2012), an awful lot of instructors fast-tracked to sidemount qualification on very short, insubstantial, courses. At that time, there were very few resources on sidemount diving, and...
  14. DevonDiver

    Tec Diver Bouyancy

    Much can be done by 'balancing the bubble' in your wing. i.e. positioning to hold more gas on one side of the wing to retain trim. Underlying problems like this can arise when doing relatively fast-track entry into tech diving. It'll iron out with more experience. Consider it a skills, not an...
  15. DevonDiver

    Small pieces of plastic coming out of 2nd stage

    Hard to describe... they vary, I think. Could be down to temperature. Small translucent or yellowish crystalline-type chunks, but they aren't brittle, they tear. If you've had the hoses for more than a couple of years they are probably due a change anyway - dissect one and see what the state...
  16. DevonDiver

    Small pieces of plastic coming out of 2nd stage

    Debris shown doesn't seem to match the compound used in the diaghram. Try removing the 2nd stage and seeing what comes out of the hose.... The crystallization issue wasn't exclusive to older miflex hoses... it was any hose that had a specific material for the inner lining. Miflex design...
  17. DevonDiver

    What ascent speed(s) do you use after gas switching on ascent?

    - 9m/min to the switch. - 3m/min between stops. - 1m/min* last stop to the surface (* in many cases I'll use the Shearwater GF99 function to mentally set a surfacing GF even lower (5-10 less) than set for the dive - this gives a "mini-curve" from the last stop to the surface. It's dependent on...
  18. DevonDiver

    Should all recreational BCD’s have two tank bands?

    I'd like to see many things,, mostly involving Scarlet Johansson. :eyebrow: But seriously, tank slippage underwater presents different risks to it happening pre-dive. Nonetheless, I'm firmly in favour of dual-band BCDs.. it was mentioned in my blog in 2011 (choosing a BCD). So much effort is...
  19. DevonDiver

    Should all recreational BCD’s have two tank bands?

    Tank won't slip if you're in horizontal trim
  20. DevonDiver

    Keeping up with Changing Thinking in Scuba

    The irony being that the manual has been neglected from any update since 2003? :clapping:
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