Sunday, November 8, 2009

Your Ears While Scuba Diving

While I have been under the weather and not under the water I've been researching ear issues and how they relate to diving since one of my issues has been inflammation of the eustachian tubes and congestion.
While I found several good articles on my issues I also found some great information on your ears and diving, specifically equalization. If you don't read any of this I HIGHLY recommend you at least watch the video by Dr. Edmmond Kay.




Valsalva Maneuver: This is the method most divers learn. Pinch your nose and gently blow through your nose. The resulting overpressure in your throat usually forces air up your Eustachian tubes. The Valsalva maneuver has three problems: It does not activate muscles which open the Eustachian tubes, so it may not work if the tubes are already locked by a pressure differential. It’s all too easy to blow hard enough to damage something and If delayed will become difficult to equalize if not impossible. With the valsalva the key is equalize early and often.

Toynbee Maneuver: With your nose pinched, swallow. Swallowing pulls open your Eustachian tubes while the movement of your tongue, with your nose closed, compresses air against them. Swallowing can be difficult for the novice diver, especially while breathing dry air. This technique is not recommended for rapid descent, as there is no margin for error if the Eustachian tube does not equalize on first effort. If a middle ear squeeze is already occurring, it will be more difficult for the Eustachian tube to be pulled open.

Lowery Technique: A combination of Valsalva and Toynbee. While closing your nose, blow and swallow at the same time. This technique is very effective once it is mastered.

Edmonds Technique: While tensing the soft palate (the soft tissue at the back of the roof of your mouth) and throat muscles and pushing the jaw forward and down, do a Valsalva or Frenzel maneuver or combine a head tilt with a Valsalva or Frenzel maneuver to more effectively open the Eustachian tube.

Frenzel Maneuver: Pinch your nose and close the back of your throat as if straining to lift a weight. Then make the sound of the letter "K." This forces the back of your tongue upward, compressing air against the openings of your Eustachian tubes.
A diver may practice the technique by watching the nose inflate and by watching the "Adams Apple" move up and down. This technique is that can be done anytime during the respiratory cycle while the effort is usually brief and can be repeated may times quickly.

Voluntary Tubal Opening: Tense the muscles of the soft palate and the throat while pushing the jaw forward and down as if starting to yawn. These muscles pull the Eustachian tubes open. This requires a lot of practice, but some divers can learn to control those muscles and hold their tubes open for continuous equalization.
Practice Makes Perfect Divers who experience difficulty equalizing may find it helpful to master several techniques. Many are difficult until practiced repeatedly, but this is one scuba skill you can practice anywhere. Try practicing in front of a mirror so you can watch your throat muscles.
When To Equalize Sooner, and more often, than you might think. Most authorities recommend equalizing every two feet of descent. At a fairly slow descent rate of 60 feet per minute, that’s an equalization every two seconds. Many divers descend much faster and should be equalizing constantly.

The good news: as you go deeper, you’ll have to equalize less often-another result of Boyle’s Law. For example, a descent of six feet from the surface will compress your middle ear space by 20 percent and produce pain. But from 30 feet you’d have to descend another 12.5 feet to get the same 20 percent compression.
Dive safe.

Would You Dive In A Thunderstorm

In a recent Divemaster class there was a question about what would cause you to cancel a dive. Now the book had all sorts of reasons; weather, visability, water or air temperature, entry not safe and a few others. Well given out location most of those conditions would not warrant canceling a dive except for weather. Now the only weather I could think of that would make me call a dive would be a thunder or lighting storm. So here is my question to you.
If you had the oppertunity to dive Blue Lake and just before you hit the water the skies turned ugly and the a big thunder bumper was rolling on top of you. Would you cancel the dive?

I created a poll located at the bottom of the blog. Let's see what you have to say.

Wednesday, October 21, 2009

DAN 24-Hour SCUBA Diving Emergency Hotline Has Changed

Effective immediately, the phone number for the DAN 24-Hour SCUBA Diving Emergency Hotline has changed. The new number is (919) 684-9111.

The change, dubbed “One Call,” is part of the continuing mission of Divers Alert Network® (DAN®) to increase the safety of SCUBA divers. With the new hotline number, divers need only to call a single phone number to activate emergency services, regardless of what kind of emergency assistance is needed.
“Over the last few years, as the benefits and resources we provided the dive industry increased, so did the phone numbers to access the assistance,” said Nicholas Bird, MD, vice president of DAN Medical Services. “SCUBA divers were getting understandably confused. By simplifying the process to a single phone number, we’ve given divers needing assistance one less thing to think about in a stressful situation.”

The new number replaces the need to decide whether to call DAN, TravelAssist to facilitate emergency evacuation, or a medical facility. Simply call DAN at the new hotline number, and all emergency assistance will be triaged and facilitated from there.

“We had a goal this year to streamline our emergency assistance resources,” said Dan Orr, president and CEO of DAN. “One Call is a huge step toward that goal, and it’s an extremely positive step in moving SCUBA diver safety forward.”

DAN’s previous hotline numbers will remain in effect for a transitional grace period. However, all divers are encouraged to update their emergency contact information and emergency assistance plans as soon as possible.

As always, in the case of an immediate life-threatening emergency, contact 911 (or the equivalent emergency response system), and then call DAN.

The DAN Emergency Hotline (919-684-9111) is available 24-hours a day, 7 days a week. It can be reached by collect call or from outside the U.S.

Wednesday, September 23, 2009

Most Favorite

I received a PM on a forum from someone asking me where my favorite place to dive in Utah was. I had to wait before I could respond, not because I was to busy, but because I had to think about it for a while. Just like no tropical destination is the same, the same goes for our local diving. Think about this, where else could you go and dive 95 degree water in the winter and drive 5 minutes away and explore under the ice if you were so inclined? So my answer to their question was, my favorite is the one I'm exploring next or the one I haven't explored. In the twenty something years I've been to a few of our lakes.

Two weeks ago Flaming Gorge was my favorite. Why? Because I have yet to have a bad dive there and I haven't seen all there is to see. The wall around Osprey Island is fascinating and if you slow down and really look you can find some amazing formations.

This weekend the Crater will be my favorite even though I have explored this site a gazillion times. Besides looking at the turtle, t-rex, gator, wagon wheel or the hot tub at the bottom, have you really looked at the sides? The formations look like petrified wood. Have you found the spout where the water exits? Did you know there are small tubes like a lava tube along the sides? Not everything to see is at the bottom.

Next weekend and the weekend after that it will be Sand Hollow. Why? because this is a site I have yet to explore, not dive but explore. That's what makes local diving so much fun, exploring. It's an adventure, to boldly go where no man, strike that, you have never been before.
Now Sand Hollow has some training platforms, a buoyancy course, a sunken Cessna airplane and a 'bus'. Trust me those will be fun...way fun. What I want to see are the formations of the red rock by the island. Trust me I'll explore.

So what's your favorite?

Monday, September 21, 2009

Kim Turns 50

Kim was excited and with a flash.....oops wrong story.......and in a flash lifts a slate with 50 scribe on it.
No we're not talking about age, not even close, we're talking about diving, after all this is a scuba blog. geeesh
This was dive 50, the number of dives needed to obtain the Master Scuba Diver rating.
In a 'dive by' Kim gives us the scuba version of a happy dance, flashes a big smile and hands out several double handed fist pumps and then proceeds to having more fun. Oh there were other congratulatory things but nothing that should be put in print..... only because I'm the author and I blush easily.
While the open water students there really had no idea what it all meant, they had to know it was something big unless diving really is that much fun.
Well yes it is but that's a different topic.
Upon surfacing with our students, Kim's still doing a happy dance on the dock and to show how happy she is, jumps in the water, gets my hair all wet...geeesh and gives more hugs all around.
After calming down it's logbook time.
Did you know that the PADI Training Logbook only allows for 49 dives? Oh my what is one to do? Just so you know the back page works just fine when someone is determined to turn 50.

It was great to be there, to see you diving, to see how you have progressed and sign your logbook.
What an honor.
Congratulations Kim Calder

Monday, September 14, 2009

Good Ole Time

Diving, it's supposed to be fun, relaxing, adventurous, exciting, thrilling and contagious. This is even before you get in the water.

You need to have a good ole time or eventually it stops being good and suddenly you begin to have a bad ole time and as soon as you have enough bad ole times you stop having time.

I don't want any of you to stop having time.

Tuesday, September 1, 2009

Road Trips

WOW over a month has passed without an entry. Shame on me.
Since returning from Coz there have been a couple of road trips. Fun trips.

On August 21st Chris Jaterka, Tony Siebert, Tyler Stanton and myself took a little road trip, ok I called it a mancation, to SoCal for a couple days of California kelp diving since Tony wasn't able to make it to Coz, he really needed to get out, have salt water in his eyes and cruise the kelp forests.Departing on Friday afternoon we drove from SLC through Las Vegas to Primm Nevada were we spent the night at Bu falo Bills before heading into Long Beach the next morning. Did I mention we went through Vegas when it was 113 degrees? Hotttttttt.
Back on the road early we pull into Long Beach a good hour before we are allowed to board the Cee Ray. With some time to kill we walked around looking at the different dive boats and grabbed a quick bite at the wharf before boarding. Nothing like a fresh fish breakfast.
Once on board and checked in, it was grab a bunk, set up gear and take a nap for the 2 hour boat ride to Catalina.
Looking at the roster I noticed there were only a few of us just diving to have fun and the rest were Advanced Open Water students from a couple Sport Chalet stores in SoCal. On board was Bob Taylor an Instructor/Regional Depertment Head Janine and I had met when the SLC store was opening. It was nice to catch up on things with Bob. So much for being incognito. Oh well. I was also able to meet another Instructor from the Vegas area that was DM'ing for the boat.

Our three dives on the first day were being conducted at sites around Arrow Point. Talking with Captian Bob it is very rare that you get to dive Arrow Point due to the way the currents and swells normally run. Nothing spectacular but it was fun crusing the kelp and seeing Tony and Tyler navigating through the kelp and seeing Tony's eyes get as big as the 6 foot bat ray we saw.

Due to some sinus issues Tyler and Chris decided to sit out the night dive. It was pretty calm and for some reason not much in the way of marine life.
Heading back it was find your bunk and nap. We arrived back into Long Beach around 11:00 pm.
Since we were heading back out with the Cee Ray the next day they were kind enough to allow us to sleep on board over night. After filling out tomorrows paper work it was bed time.

Day I awoke to the smell of bacon and gear bags being dragged across the deck above. Gaaaawd what time is it. 6:00 Am! Come on people. ;0) OK I'll get some food. It was obvious that Chris has some type of hearing problems because that guy didn't wake up until we were about a half hour away from Catalina. In fact I don't think Chris had a problem sleeping period.

Briefing time. WOW this site looks familiar. Yup, Captain Arnold, father of Captain Bob, thought it would be good to go back to the same area. Not a problem since we were going to be one cove west of yesterday. Dive one we ventured down to the wreck of a sailboat that had sunk a few years ago and was sitting at about 55 feet .Dives two and three were done one more cove away and were pretty similar to all the previous sites. Plenty of kelp, some what shallow and with a small reef.

Arriving back into Long Beach around 5:30 it was time to saddle up and hit the road for Las Vegas where we would crash for the night before heading home the next day. Was there gambling involved. Um yeah. Not sure about the winnings of everyone else but I took the casino for $6.15.

All and all it was a fun trip and I would do this one again.