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  1. John C. Ratliff

    Yet another golf ball diver dead - Naples, Florida

    When I was diving with Virginia Taylor for golf balls in Florida near Orlando, it was 1970. We had not thought about either octopus regulators, or bailout bottles. But, I survived. SeaRat
  2. John C. Ratliff

    Cold water & wet suit

    We used to use corn starch to get into our skin inside suits (open cell inside). SeaRat
  3. John C. Ratliff

    Cold water & wet suit

    Okay, there is a new term for wetsuits, "open cell." Open cell used to mean neoprene that was not "closed cell," in other words, had no buoyancy because it absorbed water as the cells were open to the water. I found out just last year that "open cell," is now a term used to describe what we...
  4. John C. Ratliff

    Question Decreasing the Breathing Reflex....Possible?

    Concerning the heritage, and instinctively holding one’s breath, that only holds for a sudden submergence into deep water if the water is warm. If it is cold, or icy, there is an immediate and instinctive inhalation reflex, which can be life threatening. Okay, you can actually measure my...
  5. John C. Ratliff

    How old do you plan to dive til?

    I'm now 78, and plan to continue diving until I feel I shouldn't...at least until 80. SeaRat
  6. John C. Ratliff

    Drysuit and squeeze question

    Actually, that is not true, as the surface-supplied line is actually a low pressure line used now in hookah diving. This means that it contains pressurized air at somewhere around 120-140 psig. So no, current surface-supplied air cannot have the hazards of hard hat diving. Hard hat diving...
  7. John C. Ratliff

    Drysuit and squeeze question

    NW Dive Dawg, I’ve been thinking about this, and the more I think about it, the more I agree with you. There are two dry suit squeezes that I’ve been schooled in, and I did dive a dry suit in the post. I dove the Aquala rubber dry suit. The two types of dry suit squeezes were: —An ear...
  8. John C. Ratliff

    Drysuit and squeeze question

    No, you are not correct. The wetsuit compresses, and in fact a wetsuit at about 45 feet of freshwater looses its buoyancy completely (I know, as I took off my weight belt in Clear Lake, Oregon at 45 feet and swam around an neutral buoyancy). So the material compresses, but not against the...
  9. John C. Ratliff

    Use of Scuba unit for Fire/Haz-Mat Escape

    Here is another thread by a “prepper” about use of scuba gear in a Nuclear, Chemical, Biological terrorist attack; https://scubaboard.com/community/threads/scuba-prep-gear-question.507980/ I now have masks on my scuba units upstairs. ;) SeaRat
  10. John C. Ratliff

    Scuba Diving Lung Built from Salvaged CO2 Tanks!

    I actually started snorkeling in the mid-1950s, both in the YMCA pool and in local lakes and streams. It was cold though. So in either 1958 or 1959 I started picking strawberries and beans for money, and purchased a 39 cubic foot tank with a K-valve, and a Healthways Scuba regulator (with a...
  11. John C. Ratliff

    is Sidemount diving more safe?

    I don't over think "Special Problems and Solutions." It can be anything that interfered with the dive in some way. Years ago, I noted in my dive logs "I got cold," and "I'm freezing," on several dives. I finally decided that I needed a dry suit. On 6-11-2011 I wrote up a dive. It is...
  12. John C. Ratliff

    Use of Scuba unit for Fire/Haz-Mat Escape

    Yes, they can, but SCBAs of the older type, with the regulator on the belt and a hose to the mask, will free flow if the rescuer is not almost horizontal in the water. The mask with a curved lens will give a very wide-view, and that can be disorienting. This distortion can also cause vertigo...
  13. John C. Ratliff

    Use of Scuba unit for Fire/Haz-Mat Escape

    We have masks in the area, but I like your idea. That will happen tonight. SeaRat
  14. John C. Ratliff

    Use of Scuba unit for Fire/Haz-Mat Escape

    Waterbury, I have confirmed this event: This is quite a story, and pretty much verified my evaluation that scuba equipment can be used as an escape from an IDLH environment. He did it, although this article doesn’t name the person. That would be nice to know. SeaRat
  15. John C. Ratliff

    Use of Scuba unit for Fire/Haz-Mat Escape

    I have been in touch with another person, Scott who posts here, and in one thread described that I have two scuba units upstairs for use in case of a fire that would cut my wife and I off from exiting downstairs in our house. It would give time for us to access and deploy the emergency ladder we...
  16. John C. Ratliff

    is Sidemount diving more safe?

    I have decades of experience in the occupational health and safety field, and a MSPH degree in Industrial Hygiene. There is one way that a sample could be gained, but it would require a new way of tracking diving and logging the diving experience. Years ago, I started hand writing my dive...
  17. John C. Ratliff

    Near drowning - Lake Union, Washington

    For those who don’t know, the “Bruce” in this case is Bruce Higgins, who single-handedly created the Edmonds Underwater Park, and has been improving it each weekend since the 1970s. I think that Bruce did write the rules, including the rule about underwater scooters. Visibility is sometimes...
  18. John C. Ratliff

    Scuba Diving Lung Built from Salvaged CO2 Tanks!

    When I was in the U.S. Air Force, we made our “jump tanks” out of used 20 man life raft CO2 bottles. We had to remove the wire wrapping, and used bands the USAF had made for this purpose. This we simply put a military harness on the tanks, and for parascuba jumps we put a modified parachute...
  19. John C. Ratliff

    Best Comprehensive Book on Diving

    I think this is geared more to the technical diver. SeaRat
  20. John C. Ratliff

    Experiences as a blind diver in the Diveheart system

    I have done my share of zero/low visibility diving, and I can think of a few things that may limit a blind diver. One is current. I dive mostly in rivers right now, and a blind diver, even with two sighted DiveHeart Divers, could have problems in a river current, or in an ocean area with a...
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