Archive for ‘Other’

Looking after your ears

By , 29 April, 2016, No Comment

looking after your earsInstructor Matt has written a new article for the DJL blog explaining how to take care of your ears and avoid the problems some people may experience during a dive. Your ears are particulary sensitive when diving due to various pressures which can lead to pain and possible injury. The tips below will help you avoid any of the potential issues that can arise.

“How to avoid ear problems whilst diving:

We all know as divers our ears can be our achilles heel, an ear infection of a perforated ear can have us out of the water for days if not weeks. Luckily for us there are many ways that can help us prevent these problems from arising.

• Clean your ears after the dive- you can use a couple of different methods for cleaning your ear post dive: firstly you can use either a commercial product designed to remove water from the ear canal, Secondly (and more cheaply) you can use a mixture of half white vinegar and half rubbing alcohol after a diving excursion to gently clean and dry the ear canal. This can also help to prevent swimmer’s ear.

• Avoid boat fumes- Breathe fresh, clean air before descending into the water. Since the eustachian tube connects the eardrum to the throat, and ultimately the respiratory system, avoiding irritants such as boat fumes and cigarette smoke will help divers avoid inflammation and pain.

• Stay hydrated- Drink lots of water to thin mucus so that it doesn’t clump and block the eustachian tube.

• Avoid dairy products- It is recommended to avoid dairy products for two days before a dive as it can contribute to thick mucus.

• Avoid diving with congestions- dive with congestion or a cold when there is already a buildup of fluid in the throat and eardrums. Congestion causes a shrinking in the tubes, which makes it harder to force in air and equalize pressure.

• Sinus rinses- Use a nasal rinse or oral decongestant to help thin the mucosal lining and flush out irritants that can block nasal passages. Check with your physician before taking any medication, even over the counter, before using the medication while diving

As you can see from these helpful tips, ear care prevention is better than cure. Take care of your ears guys and they will take care of you. Happy Diving!”

Matt

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CCR Cave Diving Song Hong

By , 30 March, 2016, No Comment

CCR Cave Diving Song HongBeing an open circuit cave diver and enjoying the challenge of the deep caves of Thailand I have for a long time wondered about the benefits of closed circuit rebreather technology in relation to caves. As CCR divers will tell you the units work best in a classic diving profile (max depth work shallower) and when a diving colleague Bruce Konefe took me on a course, ANDI CCR cave, I was intrigued to learn about the gas management rules for cave profiles as caves tend to follow their own profile without regard for the divers.

The cave where we were to complete our training, Song Hong, is a huge sink hole slap bang in the middle of Thailand. Song Hong is well known with local cave divers and stands out for its’ enormous size and depth with exceptionally clear water below the hydrogen sulphide layer. Part of the sink hole which allows for direct access to the surface is used by technical divers wishing to complete wishing to complete deep trimix diver training, avoiding the problems associated with currents and elevating respiration in the sea.

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Air Consumption and Ways to Improve it.

By , 18 March, 2016, No Comment

Air consumption and ways to improve itInstructor Dani has written a new article for the DJL Blog offering some great tips on how make your air last longer when diving. It’s not only about what you do while you are in the water, other factors such as lifestyle and preparation before a dive are also important in helping you breathe underwater efficiently.

 

“Are you constantly finding you are turning your dives based on your air supply? fastest air consumption compared to your buddy’s on the boat? wanting to spend those extra few minutes with that turtle?

You may never have the best air consumption on the boat but you can have the most improved. Here are 10 helpful tips to help you to improve our air consumption and give you longer dives safely…

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Ash Dykes, an Adventurer and Explorer

By , 8 March, 2016, No Comment

Interview with a past DJL Instructor and future hero!

Ash Dykes -Adventurer and ExplorerIt is a great achievement for all our of students who come to Davy Jones Locker and become certified divers, whether it’s completing an Open Water course or progressing through the Divemaster and Instructor internships. Sometimes you meet people like Ash Dykes, an Adventurer and Explorer who takes the level of adventure beyond what what most of us would even dream of.

 

Ash Dykes Davy Jones locker InstructorWhen Ash came to Davy Jones Locker to take his diving Internship he already had a history of setting himself challenges and consistently overcoming them. After completing his Divemaster and Instructor courses he worked at here at DJL before setting his sights on crossing entire countries unaided on foot. His first success was trekking across Mongolia and recently became the first person to traverse Madagascar. We caught up with Ash and managed to get a brief Q & A with him before he sets off again on his travels…

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CCR, Rebreather – Rise of the Machine

By , 5 March, 2016, No Comment

CCR, Rebreather - Rise of the MachineSince the introduction of closed circuit rebreathers to mainstream diving in the early 90’s, the rebreather doesn’t appear to have lived up to the hype. There are a number reasons for this, the equipment is expensive and so is the training when you consider the diving hours required to become proficient on these units, there have also been issues with the reliability of cells and complex electronics when mixed with water. These are factors which have made the inevitable rise of the machine slower but you can’t stop progression and eventually more and more diving schools and facilities will offer CCR training as standard.

At Davy Jones Locker we are rebreather friendly with 2 and 3 litre tanks available for rent, booster pumps for pushing up the o2 pressures needed for deeper dives and extensive training with ANDI, IANTD and in the future PADI/DSAT certification provided for the inspiration classic/evolution vision electronics.

The main reasons for choosing these units to concentrate our training on are the cost, availability and excellent support from AP Valves. The inspiration/evolution units are the most popular units on the market and have more dives completed on them than any other unit. They are constantly evolving and have many unique trademarked features, the cost is also very competitive with a very healthy second hand market with some inspiration classic units changing hands for as little as £600.

CCR, Rebreather - Rise of the MachineWe’re not claiming that these units are the Ferraris of rebreather systems like the JJ or Megalodon which come with a hefty price tag of £7000, meaning a student wishing to train on one of these would have to find around £8000 just to be able to practice after completing the course. The Inspiration/Evolution unit sits comfortably in the VW Beetle category, reliable, low cost with a healthy second hand market enabling a student after paying around £1000 for their course can continue diving for as little as £600 for their own unit.

These units are rated to 100 m and with some modifications can increase this to 150 m so there is plenty of scope for experiencing dive exploration and becoming part of the rise of the machine.

Check out our video below to see the evolution in use.

 

HMS Repulse wreck, South China sea.

 

 

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