Diving Squad! At ease for your scuba diving refresher tips. Do you ever find yourself unable to recall vital scuba diving knowledge? We completely understand how daunting it can be to dive — or back roll — back into to the world of scuba after an extended break.
|Published (Last):||8 October 2007|
|PDF File Size:||4.36 Mb|
|ePub File Size:||12.12 Mb|
|Price:||Free* [*Free Regsitration Required]|
Diving Squad! At ease for your scuba diving refresher tips. Do you ever find yourself unable to recall vital scuba diving knowledge? We completely understand how daunting it can be to dive — or back roll — back into to the world of scuba after an extended break. Simply click on any of the subjects highlighted above in green to dive down to an in depth look at them, or blast through this entire whale shark of an article on scuba refresher tips.
Alright — here we go: The first of our scuba refresher tips is a breakdown of the 5 step scuba buddy check that you and hopefully a buddy, give eachother right before a dive.
Check to make sure the BCD is properly connected to the air supply, and practice inflating the vest to ensure adequate airflow. Also, test deflating the vest to ensure the purge valves are in good working order. Make sure any additional weights are fastened securely inside the weight pouches. Check to make sure that you and your buddy can easily access and operate all the release catches for your vest, tank, and weights. This will allow you to easily slip out of your BCD in case of entanglement or an emergency, and assist your partner if need be.
Check that the air valve is completely open, and all tubes and valves are secured in their respective places. Take a few deep breaths from your regulator to verify proper airflow and taste. Repeat this process for the spare regulator. Strap on all your additional gear and complete a head to toe check to make sure absolutely everything is secured in place and not posing an entanglement risk.
Communication with the rest of your Diving Squad is crucial! Whether you see something interesting, are having difficulties or are running low on air; you must be able to make yourself understood to your diving squad mates.
Through the use of Diving Hand Signals. Stop: Extend hand straight out in front of you like a traffic cop stopping traffic. Turn the Dive: Make a circular motion with your index finger. Problem: Wiggle your hand in front of you. Similar to a so-so sign in standard conversation. Low on Air: Place a clenched fist across your chest. How Much Air Left? Which you can find out by looking at the pressure gauge! For every additional 10 bars of air hold up one finger after this signal.
Look at Me — This is when someone, usually your instructor, wants you to pay attention to them so they can show you something. The above hand signals are the ones that are most commonly used but the truth is there are literally hundreds of scuba diving hand signals!
Check it out here! Trust me. But there is a crafty way to overcome this. These devices consist of a hard object being secured to either your hand or tank; all you have to do is lightly bang it against the tank or shake it, to make a very noticeable sound. This attracts your squad mates attention, allowing you to give the scuba signal of a lifetime.
Browse Scuba Sound Devices. One of the most memorable sensations of scuba diving is feeling the pressure start to build upon your ears and the satisfaction of being able to equalize that pressure in order to bring them back to normal. Scuba Diving Equalizing is therefore a pretty vital concept to include on our scuba refresher checklist! You ear canal, or outer ear, is connected directly to the environment, but the space behind your eardrum — known as the middle ear — is not.
We are given several tricks to help equalize this pressure as we descend and head off any discomfort before it materialises. This is the most common diving equalizing method and is probably what you were taught during your open water course. Simply pinch your nose and try to blow. This will cause a pressure buildup in your mouth and nose that forces open the Eustachian tubes that run from the back of your throat to the middle ear, allowing the pressure to equalize.
Take a moment to familiarize yourself with these two additional methods so you have backups! Swallowing engages the muscles at the back of the throat, opening the eustachian tubes, and can often work to equalize your ear pressure all on its own. For an added boost, try pinching your nose and swallowing at the same time.
The swallowing will open the tubes while pinching your nose will cause a pressure increase and force air into them. Working your jaw also engages the muscles in the back of your throat to aid in Scuba Diving Equalizing. Like swallowing, this will open up your eustachian tubes and allow the pressure to equalize. Equalize early and often. Ascend slightly, equalize, and then continue your descent. Let your partners know if you need to descend more slowly or take an equalization break!
Have you ever noticed how your more experienced diving squad mates posses that uncanny ability to control their air consumption and make their supply last much longer than yours?
This inevitably leads to you being the one to turn the dives every time, which can be a little awkward…. The key to getting the most out of your air supply is improving your diaphragm muscle. This muscle stretches across the lower portion of your rib cage and separates your heart and lungs from the abdomen; it is absolutely pivotal to proper air exchange in the lungs.
Most of us are guilty of lazy breathing by only using our chest muscles to expand and contract our chest cavity and thus breath. However, deploying your diaphragm will allow you to draw air deeper into your lungs, improve oxygen exchange and ultimately improve your air consumption. To achieve this, we need to strengthen the diaphragm and actually start using it effectively when breathing:.
Lay down on your back with your legs bent. Place one hand on your chest, and the other on your abdomen, allowing you to feel all your muscles engaging while breathing. Now, practice breathing deeply and slowly from your nose, while focusing on engaging your diaphragm as much as possible.
You should feel your stomach rising and falling, while your chest should barely be moving. This takes practice, but keep at it and you will start to feel a difference. Another one of the best Diving Breathing Exercises to improve air consumption is to simply work on your breathing rate:.
This will require some practice! Focus on inhaling very slowly, while staying very calm and not elevating your heart rate. Altogether, these Diving Breathing Exercises will improve your breathing control, decrease your respirations per minute, and ultimately make your air supply while diving last longer.
All those possible benefits make it sound like a pretty vital one of our scuba diving refresher tips, right?
Listen up. Best get comfy! So: remember your early diving days where the instructor eyed you up and down, twiddled their thumbs, and magically produced a weight value that worked for your Scuba Buoyancy needs? Well, their ability to guesstimate weights and actually be close comes from years of experience in the water. However, now is as good a time as any for you to start honing your own scuba weight calculator skills!
In essence, you must determine if your tank will be positively or negatively buoyant, and compensate with additional weight. Given a choice, we recommend getting a steel tank as they tend to remain negatively buoyant whether full or empty.
Add all these weights together and you have the ideal additional weight you need to wear for optimal buoyancy! Remember, the goal is to slowly sink with an empty BCD and full tank at the beginning of your dive at the surface. We realise that this Scuba Weight Calculator process is a bit of a handful!
As well as this, you will undoubtedly tweak your weights as you continue diving. There is a ballpark estimate you can use to get close, and then adjust from there. This number will certainly not work for everyone, but it is at least a starting point.
At the surface, you should be slightly negatively buoyant and sink slowly even when inhaling. Plunging into the depths like a boulder is not the goal! Great work.
Our obsession with scuba abbreviations leads us to yet another Scuba Acronym. Take a look at your surroundings and get your bearings in relation to the shore, boat, or any other landmarks in the area.
Ideally, glance at your compass at the same time to help cement your area awareness. Most dive computers do this anyway, but it is still beneficial for you to think about turnaround times and your total bottom time.
Be sure to equalize the pressure in your ears even before you start descending. Also remember the point that we discussed earlier: equalize early and often during your descent! And there you have the last item on our scuba descent acronym! This particular scuba acronym is thankfully short and very easy to remember. But there is one more item our squad members want to cover beforehand. Hint — what do you need to Scuba Dive? The following pieces of gear are essential items for you to review and include on your dive equipment checklist.
Scuba Regulator — Reduces pressurised breathing oxygen to ambient pressure and delivers it to the diver through a mouth piece. BCD — The jacket divers wear to maintain optimum buoyancy, which they can adjust by operating the inflate and deflate buttons. Scuba Tank — This contains the pressurised breathing gas — i.
Scuba Weight Belt — Assists with maintaining optimum buoyancy, by stopping divers from floating to the top of the water. How much weight you take will depend on your build, weight and diving ability.
The scuba refresher experience is a one pool session program to freshen up your diving skills and regain full confidence underwater if you feel "rusty" or haven't dived in some time. Complete the online registration form. Drop by The Dive Company to make payment by cash. Note: It is preferable to register at least weeks in advance. Our Scuba refresher program consists of a one pool session training intended to review the basic skills of Scuba diving. You'll freshen up your diving skills and regain full confidence underwater.
When and Why Should You do a Scuba Refresher Course?
Whether you want a few reminders or need to go over the basics, ReActivate is personalized for you: You conveniently review scuba concepts on your tablet, mobile device or computer, then go diving with a PADI Professional. Move through ReActivate at your own pace and delve deeper into topics when you need or want to. Address — 3 York Hill, Singapore view map — here. The pool sessions are conducted on either Tuesday, Wednesday or Thursday evenings.