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pedant406 (pedant406) wrote,
@ 2011-08-30 19:10:00
Previous Entry  Add to memories!  Add to Topic Directory  Tell a Friend!  Next Entry

    Current mood:surprised

    What You Must Know About SCUBA Equipment

    If you have shopped around for scuba equipment, then you already have an idea of the variety that is on the market. The competition is pretty intense for your money, but that is only good for the consumer. What can make it more interesting for you are the people who are trying to sell their personal scuba gear. Perchance the individual has improved the equipment they had and don't need their previous supplies, or regrettably they might have lost their enchantment with the activity. Besides, a few individuals find that they cannot scuba dive for individual reasons, therefore they hope to put what they have up for sale. Either way, you should take your time so you find exactly what you are looking for at bargain prices.Investing in SCUBA equipment can be worthwhile, but not if you are unaware of exactly what equipment you need to buy before you get it. Patience is definitely a virtue when it comes to spending money on this type of equipment. Those of you that know exactly what you want, and why you need it, should go ahead and buy your equipment. Take diving fins just as one example, and this is a good one because you really need to know where you will be diving. Open water diving, for example, requires a completely different type of fin than deep sea diving or water spelunking in a cave. Diving in waters that are deep where you need extra mobility will require fins that allow you to stop, go abruptly and travel fast. It is important that the equipment that you own or rent is helpful and reflective of the type of dive you will be doing.Diving equipment for scuba diving can very expensive depending upon the type of diving that you are interested in doing. The best thing that you can do, especially if you are a novice, is to only attempt things that you know how to do until you get better. Understanding the fundamentals of scuba diving usually begins with locating a certified teacher to begin giving you lessons.

    Retention of what you are learning from your instructor is often tested at the end of the course to see what you actually know. Comprehending everything that you are being shown taught me not to give in the first time which may require you to ask questions. The next part of this will go over some of the scuba equipment and devices you may need while diving.If you are new to scuba diving, you may not know that much about scuba equipment, especially at the beginning. When you go diving, you will soon see that specialized gear is often necessary for certain scenarios ranging from deep water dives to shallow excursions. Only recreational diving will be discussed here since going over every piece of specialized equipment is beyond the scope of this article. People that do not have their own equipment typically will lease what they need while on vacation or holiday. Of course, it is okay to do this, but before you do, it is important that you understand a little bit about the equipment that you're using. Suffice to say, using unfamiliar diving gear is taking a walk on the dangerous side. The more information that you have about SCUBA equipment, the better off you will be in such a situation.Rookie divers soon discover that their first foray into buying serious scuba gear can be baffling because it's easy to be attracted to all the fancy wet suits and colorful masks. You can really make a fashion statement with your wetsuit, alone, if you wanted to do that. A majority of the serious divers aren't interested in making a "fashion statement" however. They are looking for reliable, high-quality dive gear. One word of caution concerns buying used dive gear only because it is used. If you can't see the inner workings of a piece of gear to make sure they are still functional, you may not be making a wise purchasing decision. Our best advice is for you to always purchase equipment and gear that is new until you've been around diving for a while and have the knowledge to choose quality used equipment.

    Scuba diving that is open often includes the participant donning an air or gas cylinder and the components and devices associated with it. You will see that when you dive via an open circuit, it doesn't last as long as when you dive with a close circuit set-up or rebreather configuration. Many if not most recreational divers will use the standard air mixture which is 79% nitrogen and 21% oxygen. One could find many more divers wearing dual cylinder backpacks in decades past. Nevertheless, the single cylinder arrangement is the most common presently. You will discover more divers wearing twin backpacks with the kind of diving characterized as technical diving.It is very interesting when you consider all of the work and design that goes into modern-day fins. Priced around $1000, specific application fins are very valuable for specific purposes whereas every day commercial fins run about 100 bucks. Many people that are new to the field of scuba diving are completely unaware of how bizarre diving fins can look. If you are planning to dive in caves, you can get fins that are long and have a long slit in them. The purpose of these fins is to give you maximum acceleration if necessary. Even more different, power fins do the same, yet are able to sustain speed and give you much more power while underwater.Equipment configurations related to scuba diving come in two different varieties. What you need will depend on the application, diving conditions and the purpose of your dive.

    For recreational divers, the open circuit set up is the most common. Semi closed circuits, and fully closed circuits, are representative of the rebreather configuration. Closed circuits were the initial type which were later replaced, or at least used more, by open circuits. The primary difference between an open and closed circuit is that the closed one actually converts exhaled gas into a breathable type of air.An important piece of scuba diving equipment that you need to be familiar with is called a demand regulator. First of all, there are one or more cylinders that are filled with air that you wear while scuba diving. The air in the cylinders is sent to what is called a diving regulator and is stored between 3000 and 4000 pounds per square inch of pressure. Of course the job of the demand regulator is to provide the gas at an appropriate pressure for breathing. Part of this equation is also taking into account the depth at which a scuba diver is at.At one time a dive mask may have been the same as, or similar to, snorkeling goggles, but today's masks are a world apart. Scuba diving masks have really gone high-tech and are pretty impressive with their features and benefits. As an example, when we were writing this article we discovered that the mask a lot of sport and recreational divers are choosing is the Neptune Space G.divers full- face mask. One of the nice features of the Neptune Space G. is its newly designed quick-release system and an easy to access rubber purge button. The G.divers design maximizes the visual field, especially the peripheral area, a nice feature that gives a diver an astonishing view while underwater. The built-in equalization system, a patented design, makes it easy to clear your ears. Of course you know about the wetsuit as it is a very well-known piece of scuba equipment. Wetsuits that are colorful are a way that many divers can put their own twists on their diving equipment. However, the most important factor is to get a high quality suit that is appropriate for the conditions. Making a choice from a category of temperatures that matches the temperature of the water is what you will want to do. Pay special attention to the thickness of the wetsuit, and this is play a major role in how comfortable you will be during your dive. A correct thickness will be dependent on your diving location, and clearly the water temperature is important also.

    Second stage air regulators which are on scuba diving mouthpieces help you breathe the air in the tanks. However, many divers like to use the octopus which is a spare demand valve affixed to a separate hose. At the top of each oxygen cylinder tank, a primary regulator is attached with multiple hoses. It is always good to have extra hoses, not to mention a spare demand valve, when scuba diving in unknown territory. This will help ease a little bit of your worries as it will provide a way for you to breathe in case things go wrong. You can easily spot this because it will be yellow in color, and that means it is a secondary source or emergency back-up.

    A single setup hose is used with open circuit configuration instead of multiple hoses. Sporting a two stage regulator design, and having a worst stage regulator to handle all of the high pressure in the cylinder, the single mode regulator setup is definitely ideal. As you may have guessed, the second stage regulator is found in the mouthpiece which is the demand valve.

    With just a few small adjustments, each person can figure the demand valve to supply the proper amount of air to the diver. Divers can immediately get access to low pressure and high pressure components and devices on their mouthpiece. Whether you are looking at breathing normally through your mouth, or three or diaphragm, each device provides a solution to make life easier.

    Everybody is familiar with the 'tanks' or air cylinders that are used for scuba diving. Typically, these air tanks are made of stainless steel; most of the time they are provided in different sizes to fit the various divers that will use them. There are so many different diving scenarios that are possible that there are many different styles of tanks for each possible occasion. The construction of the cylinders has an effect on the amount available for each diver that uses them. European and American usage of the cylinders and cylinder designations can be very different. In the United States, for example, when the cylinder has 1 Atm of pressure within it, it is considered full. Internal volume, on the other hand, is how the Europeans designate the same exact measurement.The configuration called the "double-hose" demand valve became the standard set up and had the distinction of being the first in mainstream use. This type of regulator/demand valve makes use of two corrugated breathing tubes with the second tube being used for exhalation. The valve assembly was rather large and circular and was fastened to the top of the two cylinders. The twin tubes were used for breathe inhalation and the other for exhaust, or exhalation. There were special design considerations that were critical for safe operations. As an example, in order to prohibit the flow of gas with no restriction, the second (inhalation) tube had to be placed close to the other equipment.

    Though not for the rank beginning divers in our opinion, technical diving is spell-bounding. The scuba accessories of varying kinds that are a necessity for this, are different cylinders that have gases that are specific. One type of gas, Trimix, is used at deeper depths only, for example. In addition, a vessel of oxygen that is pure could be hauled and employed while ascending stops for decompression. Needless to say, the additional cylinders could account for certain issues in attaining effectual buoyancy. This is the reason as to why technical divers wear (BC) or high capacity buoyancy compensator.You will always know if you are with a technical diver as they will go deeper than you would imagine going yourself. To dive to a greater depth, you need special training and also to be aware of the dangers involved. To improve their overall chance of success, increased safety levels, deep-sea divers will alter the oxygen mixtures in their tanks and bring along redundant gas systems for protection. Diving to such depths also mandates the use of pony cylinders. Pony cylinders have a their own demand regulators, hoses and mouthpieces. Used for extreme malfunctions, the primary gas supplies in them will help compensate for a lack of air in the main unit.One of the easiest ways that all scuba divers can find a way to get optimal buoyancy is by using weights. The amount of weight that you use will be between 5 pounds and 33 pounds. The reason that you want to do this is because the buoyancy provided by the diving equipment needs to be balanced by additional weight.

    Sometimes the buoyancy level is negative, yet locating it can help you find the right amount of balance. Utilizing lead as the weight, divers not too long ago had to place blocks of lead on their belts to achieve buoyancy. Improvements have been made over the years so that nylon lead shot bags are used instead. The weighted bags can be placed inside the buoyancy compensator device.The next piece of diving equipment that we will address is called a dive computer. This device is very clever in that it shows your ascent rate as you rise to the surface, allowing you to compensate or slow down if you're going too fast which will, inevitably, give you decompression sickness upon arriving. The safe ascent profile that is created by the computer in this device gives you the information you need to ascend at the proper rate to be as safe as possible. The software actually computes your speed as you ascend, and also warns you as to when you need to do decompression stops along the way. Even more remarkable is that it uses your body's inert gases to continuously calculate and measure all of this information. There are other parameters that can be calculated and displayed depending on one's needs.Whether you call it a BC or a BCD, the buoyancy control device is something most people are familiar with. Jacket style BCs are the most popular with recreational divers today because they include the BC, as well as weights, places to attach additional equipment, and a place for the cylinders. Another design element is to create a connection to the air, or gas, so the device can be easily and quickly inflated if so desired. In summary, an inflation valve is used to inflate the bladders of the BCD and a vent valve allows the gas to escape from the BC. The purpose of the BC is to keep a diver neutrally buoyant. This happens if the weight of the diver equals the weight of the water displaced by the diver. Considerations and discussions abound on the subject of scuba gear. Provided you are a beginner, you can get numerous tips from websites that you trust like PADI or your diving teacher. Choosing where your dive area will be is the greatest way to start. That is important because a lot of what you will need to get depends on the water conditions.

    Scuba diving is definitely in your future once you get certified and purchase the equipment that you need to do your diving. Diving is not limited to the sea; you can also use your skills at lakes and other systems of water. Quarries and lakes are very popular dive spots which are full of fresh water opposed to the salty sea. But remember: always use the buddy system and never dive alone.

    There are some aspects of diving that involve complex scuba equipment. The more specialized gear is used for divers certified for specific purposes such as dry suit diving, cave diving and diving at greater depths. The industrial complex, as well as the military, are requiring even more specialized gadgets. Scuba diving is a fascinating sport that can provide many years of constant learning and exciting experiences.

    When looking at all of this advanced equipment, it is clear that some of this scuba gear is very beneficial. Excellent advances have been made with technology and design to make this type of dive gear available. It is important that you spend money on the most reliable model, otherwise you may end up with a piece of junk that will do you no good and put you at potential risk.Make sure to take into consideration the environment in which you will be diving when you select your scuba diving gear. The use and operation of each piece of gear you are considering must be very clear to you before you make any buying decisions. In addition to understand the workings of each piece of equipment intellectually, you must also fully comprehend how the equipment will act when you dive.



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