Dive Right - Now

Third Quarter, 1998 - Volume 1, Issue 4 or Return to Webpage


NITROX, NITROX, NITROX

We're so proud we had to announce it three times!

Where does my tank of Nitrox come from?

There are two major methods of producing Nitrox. If you know that Nitrox is any mixture of Nitrogen and Oxygen with an Oxygen concentration than 21% then you can figure out it is possible to take some Nitrogen out of Air or to put some Oxygen into Air to produce Nitrox.

 

There are filters consisting of membranes that allow Oxygen to pass through more easily than Nitrogen. When clean pressurized air is passed through such a filter the result is Nitrox on the downstream side. This method is useful for producing large quantities of Nitrox. The filtering equipment is very expensive.

 

We blend Nitrox by the partial pressure method. We take a scuba tank that has been cleaned as clean as a medical Oxygen cylinder and add some pure Oxygen into it. After we have enough Oxygen inside we can top off the scuba tank with very pure hyper-filtered air.

 

Since it is possible to blow yourself up by mixing Oxygen with oils and greases or even with ordinary compressed breathing air you don't blend Nitrox without the proper equipment and training.

 

Three of the instructors at Dive Right - Coron are IANTD (International Association of Nitrox and Technical Divers) certified Nitrox blenders.

 

Each tank of Nitrox used at Dive Right - Coron is blended to optimize the allowable bottom time on a particular wreck. When you dive deeper less Oxygen can be tolerated so you wouldn't use the same Nitrox on the Olympia Maru that you would use for a penetration dive on the Irako.

 

Remember, "Divers do it at medium depths, but longer, on Nitrox".

 

Why do I want to breathe Nitrox on the wrecks?

Mark Bush

We go to the trouble of using Nitrox for an increase in Bottom Time on a dive. Using the proper mixture of Oxygen and Nitrogen tailored for the maximum depth of the dive can increase the allowable bottom time by as much as 50%

 

The PADI Nitrox Diver course will teach you the advantages and limitations of Nitrox and make you aware of your responsibilities for making Nitrox dives safely. Your PADI Nitrox Diver course will include two Nitrox wreck dives on the Japanese World War II wrecks in Coron Bay. At the end of your course you will get a Nitrox Diver license from PADI.

Your Nitrox Diver license will allow you to purchase Nitrox fills as your first PADI Open Water Diver license allowed you to purchase compressed air.

To take maximum advantage of Nitrox you should consider using a Nitrox dive computer. The dive computer has revolutionized diving by allowing easy multi-level diving. You get increased bottom time for multi-level diving compared to planning dives on the PADI Recreational Dive Planner.

If you don't already have a diving computer, taking the PADI Nitrox Diver course is a good reason to consider this invaluable of diving equipment a necessity. A Nitrox diving computer allows you to do multi-level dives on Nitrox as well as on air. You simply set the Oxygen percentage of the gas you are using prior to your dive.

When making this important purchase make sure you read about how diving computers work, review technical evaluations in diving magazines, and most importantly, talk to a PADI Nitrox Instructor.

Consider the Zeagle Status 1 Nitrox computer. It has the ability to be adjusted from very conservative limits if you are out of shape or tired or performing many dives, or to be adjusted to allow very aggressive technical diving profiles. The Status 1 is suitable for using one Nitrox mixture during the dive.

The Status 2 computer allows use of a second Nitrox mixture for decompression diving.

PADI - Project Aware

(Aquatic World Awareness Responsibility and Education)

 

10 Ways a Diver Can Protect the Underwater Environment

NUMBER 2: Be aware of your body and equipment placement when diving.

 

When diving remember your fins. It is safe to say that more coral damage comes from inadvertent fin strikes than from any other cause. You forget that you are over two meters long when stretched out while wearing fins.

 

Good divers stay horizontal. Divers who are not comfortable in the water tend to rise to a vertical position and their fins can strike the bottom.

 

Good divers are near neutrally buoyant. When they stop finning they drift downward ever so slowly. If you have to use your hands to keep yourself off of the bottom then immediately put some air in your BCD.

 

Use clips or retainers to keep your gauges and your octopus from dragging on the bottom. Not only will you prevent damage to the environment but you'll prevent damage to your equipment.

 

Never use your hands to become familiar with the marine environment. As a rule, responsible dive operators in tropical environments will not take out divers who are wearing gloves. Gloved divers tend to hand walk their way along a reef.

 

Dive Right - Coron Manager Assists in Teaching a Philippine Coast Guard CPR Course

 

On 29 Sep 98, Dive Right - Coron manager Peter Gannon assisted in teaching members of the Philippine Coast Guard and Coast Guard auxiliary proper administration of CPR (cardiopulmonary resuscitation). Twelve members were trained with the PADI Medic First Aid Program. Eight of those who were trained elected to pay for their Medic First Aid PICs and receive their certification cards.

 

Dive Right Manager and Divemaster Recover Drowning Victim

 

Peter Gannon and Dennis Hunter recovered the body of a Coron resident who drowned as a result of a motorboat accident. The victim was apparently standing up in a motorboat that was traveling at high speed and hit a floating object. The victim was probably knocked unconscious and thrown into the water.

 

Local authorities had given up the search for the victim without ever diving. When Peter and Dennis heard about the accident they went to the site intending to perform an underwater search but found the victim floating at the surface.

 

When traveling at high speed or alone in a motorboat it is strongly recommended to wear a personal floatation device that will float you face up while unconscious. Some countries that place a high monetary value on human life have made wearing life preservers in small boats a law.

 

If you place a high value on your own life this is a good practice to follow, especially when alone or at high speeds.

 

Give Yourself a Dive for Christmas

 

Remember that you are a diver. Take time out this holiday season to renew your acquaintance with the ocean. If you haven't been diving for a while, polish your skills and then do a first dive through PADI's Scuba Review Program.

 

Better yet, share your love of diving and introduce it to someone else through PADI's Discover Scuba Diving Program.

 

For the "Gift for a Lifetime" PADI's Junior Open Water Diver License is available for 12 to 15 year olds.

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