Search results

  1. Jack Hammer

    Joe Citelli

    Rest in Peace
  2. Jack Hammer

    Chicago gear rental

    DRIS is the only shop I'm aware of locally that offered tank delivery. Considering the round trip distance and time involved I'm surprised they ever offered it.
  3. Jack Hammer

    Great Lakes CCR

    I see a huge variety of units on Lake Michigan. I dont believe there is one dominant brand/model. Buying used is a great way to start.
  4. Jack Hammer

    Scrim Material

    The scrim does an excellent job and keeps any water that gets into the can out of the sorb too. Seeing how the scrims are inexpensive and don't need changing that often I'm ok with them. Use what works for your unit. :)
  5. Jack Hammer

    Scrim Material

    On the JJ the sorb would spill out both ends of the canister without scrims. :wink:
  6. Jack Hammer

    He unavailable - DeepAir again?

    I think it's kinda comical listening to people get all worked up about an article written 20 years ago as if it's something new. p.s. the subject of the author, his actual affiliations, and his method of delivery has been addressed multiple, multiple, multiple times here. :deadhorse: :)
  7. Jack Hammer

    Better SAC rate switching from Poseidon Xstream to Apeks

    My personal experience is a properly tuned regulator will have less WOB than a regulator with a less than stellar tune.
  8. Jack Hammer

    Question Advanced gas planning for complex cave dive (upstream/downstream)

    @grantctobin Can you post a copy of Andrew Ainslies Rethinking Bailout. For whatever reason I seem unable to share my copy and feel it is relevant.
  9. Jack Hammer

    He unavailable - DeepAir again?

    I've been diving it regularly for over 10 years and have made dozens of dives on that wreck. The most common gasses I see used on OC these days are 21/35, ean25, or thankfully much less frequently air. But there are also a lot of people who gas choice depends on their groups or their personal...
  10. Jack Hammer

    Lost diver rescued - Florida

    Nice to hear of positive outcomes.
  11. Jack Hammer

    Doc Deep dies during dive.

    @kierentec Jon, Thank You for being so honest and open to write such a GREAT article!
  12. Jack Hammer

    DIR- Generic Analyze gas - right or left post?

    I dont recall in any of my GUE courses being taught to analyze off a particular post. I do recall always verifying the isolator is open. Generally the right post was used due to having the left reg still attatched and also verifying pressure and isolator. On an assembled rig we analyzed via the...
  13. Jack Hammer

    Question How to practice deco ascents?

    A good start is to get comfortable and stable with your min deco ascents at 9m, 6m, 3m. There is more bouyancy shift at those that at the deeper ones. Being able to easily hold these without struggling will help quite a bit overall when you take tech classes.
  14. Jack Hammer

    Flowstop on bottom gas bailout?

    +1 Tank valves have all the upsides without any of the downsides.
  15. Jack Hammer

    Virginian diver dead at 190 feet - Roaring River State Park, Missouri

    On a rebreather your lungs are powering the gas movement, not the pressure in the reg hose, there is resistance on both inhale and exhale. You essentially suck in the gas to your lungs then blow out to keep the gas moving through the scrubber media. This action makes the gas 'feel' denser and...
  16. Jack Hammer

    GUE JJ configuration

    My GUE CCR class taught long hose over loop when diving with OC divers, long hose under loop when diving with CCR only team. Moving the hose on top of loop when called for is quick and simple. Donating the hose, even if clipped off, should be fairly simple for tech divers. As a side note, most...
  17. Jack Hammer

    WKPP divers connect Chip’s Hole and Wakulla Cave systems

    GREAT NEWS!! Glad to hear it's finally official.🥳🥳🥳
  18. Jack Hammer

    New Halcyon doubles wing

    Sure, if you get that version. In my case I ordered the GUE configuration that didn't include a wing.
  19. Jack Hammer

    New Halcyon doubles wing

    Depends on the rebreather. Not all are the same size. When I bought my JJ and took CCR1 I was told i could use my 60# evolve wing for the class and it would work well if i didn't want to get the rebreather specific wing. In my friends JJ class in 2014 he used his 60# Evolve wing.
Back
Top Bottom