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a method of viewing coral reefs underwater for extended periods of time; diving into depths of the water using a Self-Contained Underwater Breathing Apparatus. seagrass bed - a large area in the tidal zone of the ocean where seagrasscs grow.
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Gauging DOT 3AL3000 SCUBA cylinder neck threads
In response to requests for clarification, from members in the Far East and Australasia, the following guidance is issued for SCUBA cylinders and valves that utilise the ¾" NPSM thread form.
ASSET recommends that technicians, involved in the assembly and maintenance of SCUBA cylinders and their valves, use the appropriate, calibrated, thread gauges as a means to ensure that they are both within tolerances and compatible with each other. Additionally, the technician should have received training in their use, as provided in the ASSET Dive Industry Technician’s and Cylinder Tester’s Courses and Manuals.
How to Avoid Isobaric Counter diffusion hits during trimix decompression
Isobaric Counter Diffusion triggered by breathing gas changes is predominantly a problem when carrying out Trimix dives that are deep enough and long enough to generate formal decompression stops that require the use of a hypoxic Trimix. An analysis program embodying these concepts to identify known unsafe ICD gas switching practices and unsafe decompression is made available
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Shore Scuba Diving on Oahu - Drop in Anytime
Shore Scuba Diving on Oahu, Drop in Anytime! Some of the most fun that I have as a diver was on Oahu shore diving in Hawaii. Lots of great locations to chose from on Oahu, with 3 of my favorites Read more...
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Discover Scuba Diving; Some Advice to Get a Good First Dive Experience!
Millions of people have become certified divers, but for many there is some fear that keeps them from becoming scuba divers. We all tend to take imagined fears to new things with us, and until we actually experience it we will be afraid, this is why certifying agencies provide the
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“Discover Scuba Diving” or “Try dive” sometimes it is called a “Resort dive” programs, so that you can experience in a very controlled atmosphere, and if it is something that you enjoy, most dive certification agencies will count the first experience towards their open water certifications. Some people like to do just the try dives and never get a certification, and fair enough, for a few people it was fun, but they are content with just the one experience.
The most important thing for most people is that they feel safe and confident with their instructor. As in any endeavor, with a good teacher the subject will seem very simple. For the basic try dive, or resort dive “DSD” there are a few basic skills combined with an underwater tour that you will accomplish during your Discover Experience, at all times, the instructor will be with you, often times they or their assistant will be holding on to you for added control.
The next most important thing for beginners is good equipment. For an experience scuba diver they have heard and know from experience that little bubbles is no troubles, for a someone doing their first Discover experience these bubble sound like Darth Vader coming for them on a bad hair day, especially if it is from the tank valve or the over relieve valve on the scuba jacket, called a “BCD”, both of these are located right behind your ear, so the sound seems very loud. Even well maintained equipment will develop little air leaks from time to time, and for the over pressure relieve valve, nothing is wrong, the valve is doing what it is suppose to do, which is to vent off excessive air from the “BCD” to prevent damage to the dive equipment when it has been overfilled.
Most shops will repair the leaks as soon as they are aware of it. Most dive operations will carry spare gear just in case they have a problem and with “DSD’s” or any diver they will quickly replace the gear that needs servicing,
Article continues below...
Gauging DOT 3AL3000 SCUBA cylinder neck threadsIn response to requests for clarification, from members in the Far East and Australasia, the following guidance is issued for SCUBA cylinders and valves that utilise the ¾" NPSM thread form.
ASSET recommends that technicians, involved in the assembly and maintenance of SCUBA cylinders and their valves, use the appropriate, calibrated, thread gauges as a means to ensure that they are both within tolerances and compatible with each other. Additionally, the technician should have received training in their use, as provided in the ASSET Dive Industry Technician’s and Cylinder Tester’s Courses and Manuals.
How to Avoid Isobaric Counter diffusion hits during trimix decompressionIsobaric Counter Diffusion triggered by breathing gas changes is predominantly a problem when carrying out Trimix dives that are deep enough and long enough to generate formal decompression stops that require the use of a hypoxic Trimix. An analysis program embodying these concepts to identify known unsafe ICD gas switching practices and unsafe decompression is made available
in order to keep the new diver calm and receptive to the life changing experience that they are soon to partake in.
The size of the group, or more importantly the number of divers to an instructor-assistant will also make a huge impact. When you have smaller groups the instructor can spend extra time with the students, this is very important if you have a someone who is having difficulty with a particular skill, sometimes dive schools and individual instructors will have a dive master work with them with bigger groups, and they will have the dive master take the diver that is having problems with a particular skill to the side, and work with them until they are proficient with the skill, and then join back in with the rest of the class. I would strongly suggest that you ask what the student to instructor/dive master ratio is, and seek a group of no more than a 4 to 1 ratio. Hope to see you underwater soon!
Look for the next article what to expect during your Discover Experience.
Fred Tittle has lived in holiday vacation resorts his entire life, from Lake Geneva’s Playboy Club, as a rock jock for KSPN FM in Aspen Colorado, Hawaii in Waikiki and EcoSea Dive in Sihanoukville Cambodia where he teaches PADI & SSI and runs adventure tours, http://www.ecosea.com
Fred’s new project http://www.CheapCharliesHotels.com where he reviews cheap hotels , budget guesthouses & discount accommodations but really is an excuse to vacation more, China is next.
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Gauging DOT 3AL3000 SCUBA cylinder neck threads
In response to requests for clarification, from members in the Far East and Australasia, the following guidance is issued for SCUBA cylinders and valves that utilise the ¾" NPSM thread form.
ASSET recommends that technicians, involved in the assembly and maintenance of SCUBA cylinders and their valves, use the appropriate, calibrated, thread gauges as a means to ensure that they are both within tolerances and compatible with each other. Additionally, the technician should have received training in their use, as provided in the ASSET Dive Industry Technician’s and Cylinder Tester’s Courses and Manuals.
How to Avoid Isobaric Counter diffusion hits during trimix decompression
Isobaric Counter Diffusion triggered by breathing gas changes is predominantly a problem when carrying out Trimix dives that are deep enough and long enough to generate formal decompression stops that require the use of a hypoxic Trimix. An analysis program embodying these concepts to identify known unsafe ICD gas switching practices and unsafe decompression is made available
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