Search results

  1. gkndivebum

    Where you live, and where you dive

    Kona, Hawaii Where I live: Where I dive:
  2. gkndivebum

    Hollis Prism2

    It will be nice to have another CCR diver on the island. Send me a pm when you are closer to getting here, and we'll go diving. Tell Jeff I said hello.
  3. gkndivebum

    Anyone here use the GoPro HERO3 LCD Touch Bacpac while diving?

    I'll add that the hard back flexes enough that the camera is useless deeper than about 180 FSW. It's not flooding, but there is enough pressure on the screen to where the camera doesn't operate correctly. I am going to replace it with one of the Golem Gear housings.
  4. gkndivebum

    Flood warnings out for north florida

    Looks like I'll be seeing a lot of Ginnie and Manatee this trip (arriving on Sun).
  5. gkndivebum

    dry gloves - help me find....

    I have heard of people using some of the stiffer coffee-stirrer straws underneath the seal on seal to provide a means for the glove to equalize a bit with the suit. I assume it would be the stiff variety. Haven't tried it myself; I use DUI Zip gloves.
  6. gkndivebum

    Help from Oahu home mixers.

    Check with Air Liquide. Two locations on Oahu: air liquide oahu - Google Maps
  7. gkndivebum

    Drager Dolphins

    You'll be getting to know Martin well - Rebreather, Parts, Service, unique solutions
  8. gkndivebum

    Hawaii Wreck Diving New Years Resolution

    For the Big Island, in addition to the wrecks in Kailua Bay (The Naked Lady and The Predator) and the Airplane wreck by the KOA airport there are a couple of wrecks / debris fields at Mahukona: The steamship Kauai, and the anchors and debris from the Empire. The latter you would be better off...
  9. gkndivebum

    Casey McKinlay reviews his new favorite DiveWear - our Xm250

    That would summarize it pretty succinctly for the way I use the two undergarments. I find the XM250 more comfortable, but do like the ability to chuck the fleece into a washer when traveling (keeps the dive buddies happier if birds don't fall out of the sky when I climb out of my drysuit at the...
  10. gkndivebum

    Casey McKinlay reviews his new favorite DiveWear - our Xm250

    I have both, and use them in different environments. The XM250 is something I use here at home (73F-77F water) for long (> 2hr) dives; I use the 300 in, e.g. FL caves (68F-72F). The polar fleece is easier to take care of when traveling (for me, anyway). I also find that the XM250 is warmer...
  11. gkndivebum

    Best Anti-Fog for tec divers

    I'd avoid it. Here's the MSDS: https://www2.itap.purdue.edu/msds/docs/7756.pdf I've had good luck with this: Bausch & Lomb™ FogShield Sport™ Products Also have had reasonable luck with dilute baby shampoo (though "dilute" is the keyword here...)
  12. gkndivebum

    Captain Moving to HI in September... looking for employment connections

    It would be helpful to know which island.
  13. gkndivebum

    Waters temps near Kona right now?

    Here are two graphs from last week -- one dive within recreational limits, and one deep dive (79F and 75F)
  14. gkndivebum

    Liquivision and RGBM :)

    I've been test diving it. It's coming along nicely.
  15. gkndivebum

    Your Best Instructor and Why:

    Bob Sherwood, for setting the bar. Peter Readey, for giving me the tools and mindset to dive CCR. Tim O'Leary, for his no-BS mentorship.
  16. gkndivebum

    Ultrasonic Cleaner

    I picked up a nice Branson unit from Ultrasonics - New & Used Lab Equipment - Analytical Instruments. Their stock varies a bit.
  17. gkndivebum

    Wesley Skiles' widow suing over rebreather

    Only party not mentioned in the suit is Micropore (ExtendAir). Curious.
  18. gkndivebum

    CNS% Surface Interval Credit & NOAA Oxygen Exposure Limits

    Ah - where do those magic numbers come from, anyway? Turns out according to NOAA you're allowed 1440 OTUs in a day (O2 at 1.0 ATA for a 24 hour period). The recommended maximums in the tables come from leaving enough OTUs to tolerate a USN TT6 recompression session. A TT6 is approximately 600...
  19. gkndivebum

    CNS% Surface Interval Credit & NOAA Oxygen Exposure Limits

    ​From: Hamilton, R.W., Kenyon, D.J., Peterson, R.E., Butler, G.J., & Beers, D.M. REPEX: Development of Repetitive Excursions, Surfacing Techniques, and Oxygen Procedures for Habitat Diving. NURP Technical Report 88-1A, 1988. PO2 %CNS/min OTUs/min 0.6 0.14 0.26 0.7 0.18 0.47 0.8...
  20. gkndivebum

    CNS% Surface Interval Credit & NOAA Oxygen Exposure Limits

    ResidCNS = exp(-0.0077 * SIinMin) * CNS In other words, assuming a 90 minute halftime, you can calculate your residual CNS exposure by the exponential function listed above, where SIinMin is your surface interval in minutes. Exponential means e​ raised to the power of x: Euiler's number...
Back
Top Bottom