general meeting minutes - nn.net
TRANSCRIPT
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 1
This Issue General Meeting Minutes p. 1 Calendar p. 1 Executive Meeting Highlights p. 2 Dive Reports p. 2 From the Prez p. Environmental News p. 3 Log Book p. 6 Parting Shots p. 11
General Meeting Minutes Present: Steve Ranft, Mag Ranft, Glenn Mitchell, Ryan Jones, Laurel Sheppard, Dave Foley, Marty Bailey, Don Ellerbrock, Adam Biehl, John Guegold, Steve Locsey, Andrea Caito, George Bittner Program – “Grenada Diving” Presented by Dave Foley
50/50 Raffle winner Mag Ranft won and donated the wings back to
the club
Member Raffle Donn Ellerbrock won a Sea Life 5 Megapixel
Underwater camera donated by Laurel Sheppard
Treasurer’s Report
$ 6,679.86
Announcements
1. 2017 marks 60th Anniversary of the Columbus Sea Nags. Steak Dinner July 29th at the Ranft residence. Free to club members and $15 per person for non club members. 2. Ryan Jones and Steve Locsey Dive Trip to Bonne Terre Mine in MO. April 22-24. If interested, contact Ryan or Steve. 3. 2017 Ohio Underwater Archaeology Workshop: Classroom instruction and hands-on practice will be April 29-30. In-water practice will be May 20 or 21.
http://www.inlandseas.org/event/nautical-archaeology-workshop-2/ 4. Clothing embroidery is $9.50 per item for our 3 color logo. We have 11 items but need 12, so bring your clothing in soon! 5. 2016 Club membership dues are $30.00, $40 for husband/wife. 2016 Ohio Council dues are $9.00. 6. Please contact Laurel Sheppard and Dave Foley with any program ideas for 2017. 7. Please contact Ryan Jones and Steve Locsey with any activities and dive ideas for 2017. 8. Club logo patches and decals are available to new club members as a part of their membership dues. Returning members can purchase extra decals/stickers at a cost of $1.00 each—these are plastic/waterproof--and extra patches for $2.00 each while they last. Dues can be mailed to:
Glenn Mitchell 120 N. Warren Ave. Columbus, OH 43204
9. Facebook: You can find the Club Facebook page by going to: http://en-
gb.facebook.com/pages/Columbus-Sea-Nags-SCUBA-
Divers-/289276535926?v=wall, thanks to Andy Dennis. 10. Twitter page!! Thanks to Josh Carney,
the club now has a Twitter page: <@CbusSeaNags>. Check it out today!
Calendar of Upcoming Events 2017 Apr 6 General Meeting @ Planks, 8:00 PM Program: Marty Bailey’s Malta trip 20 Executive Meeting @ Planks, 7:00 PM 22 – 24 Bonne Terre Mine, Bonne Terre, MO May 4 General Meeting @ Planks, 8:00 PM Program: Underwater Photography by Mark Thomas 18 Executive Meeting @ Planks, 7:00 PM 21 Club Dive at Lake View RV Park, Lancaster Ohio June 1 General Meeting @ Planks, 8:00 PM Program: Cozumel Dive trip 10 Dive In at Circleville Dive Center
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 2
15 Executive Meeting @ Planks, 7:00 PM July 6 General Meeting @ Planks, 8:00 PM Program: No Program Only a social meeting 8 – 9 3rd Annual Club Dive Weekend at White Star Quarry 20 Executive Meeting @ Planks, 7:00 PM 29 Sea Nags 60th Anniversary Celebration Aug 3 General Meeting @ Planks, 8:00 PM Program: Dave Foleys St Croix trip 12 Corn Roast/Swap Meet 17 Executive Meeting @ Planks, 7:00 PM 18 – 21 Club Dive at Pennyroyal Quarry Hopkinsville, KY Sept 7 General Meeting @ Planks, 8:00 PM Program: Great Lakes Acoustic Telemetry Observation System 21 Executive Meeting @ Planks, 7:00 PM Oct 5 General Meeting @ Planks, 8:00 PM Program: Pennyroyal Revisited 19 Executive Meeting @ Planks, 7:00 PM Nov 2 General Meeting @ Planks, 8:00 PM Program: Sea Hunt episode 16 Executive Meeting @ Planks, 7:00 PM Dec 7 General Meeting @ Planks, 8:00 PM Program: TBD 21 Executive Meeting @ Planks, 7:00 PM Monthly meeting programs subject to change without notice.
Executive Meeting Highlights March 16 @ Planks, 7:00 PM Present: N/A Executive meeting was canceled All members are welcome to attend
Executive Meetings
Dive Reports Please send dive reports to
Brought to you by
Lakeview RV Park Full Hook-ups • Scuba Diving • Propane
Laundry• Swimming• Fishing• Wi-Fi
(740) 653-4519
Joey & Terrie Stewart 2715 Sugar Grove Rd. Fax (740) 653-5606
Lancaster, OH 43130 rvatlakeview.com
Spasms None reported Oral Reports None reported
Written Reports Cocos Island trip by Rob Robison
The article can be found https://drive.google.com/open?id=0B5DXC4m8
xbK9cWtvQ0lYOGpFcVE& starts on page 2.
Camping and Diving in Key Largo By Steve Locsey, March 26, 2017
While there, I had the opportunity to attend a most intriguing presentation at the History of Diving Museum in Islamorada. I planned on making this a repeat of last year by diving five consecutive days for four one hour dives a day. All I needed was the weather to cooperate with winds under 15 knots and no thunderstorms, which indeed happened. I was lucky again. But my real luck was that the second night there, I received an email from the History of Diving Museum inviting me to a free presentation in the new library, "NEEMO 21 Mission: Going Undersea to get to Outer Space". Then I remembered that I've gotten about 4 of these invitations already, always leaving me with the letdown of not being able to go, since Columbus is so far from there. I instantly knew this was a solid "yes" for Wednesday night after diving! I later was told that these are monthly on the third Wednesday at 7PM. It was
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 3
going to be a very tight fit with getting off the dive boat at Horizon Divers around 5PM, rinsing gear, getting showered up and driving the 22 miles on US-1 down to mile marker 83. I pulled into the museum parking lot that night at 5 minutes after seven. The library seating was almost full, and the presenter, Dawn Kernagis, had begun speaking already. Really quickly, I felt this was a very special presentation. Dawn works as a research scientist in the Institute for Human and Machine Cognition in Pensacola, Florida, was inducted into the Women Divers Hall of Fame last year, has been diving since she was fifteen, and has a PhD from Duke University that included researching the role that genetics play in decompression sickness in divers. This woman gave a presentation with such enthusiasm. The content and fluidity of her presentation over the next hour and a half really kept the whole library of attendees focused and entertained, especially with the wonderful slide show she had! NEEMO is a NASA mission that sends groups of astronauts, engineers and scientists to live in Aquarius, the world's only undersea research station. She had the opportunity to join NEEMO as both a crew member and a researcher, living underwater for 8 days with 5 other crew members. This included astronauts from the space shuttle and the International Space Station. Aquarius had them at 65 fsw, where they reached saturation gas levels very quickly and needed about twelve hours of decompression at the end. The best way you can get a feel for the exciting presentation I saw is to tune in to You Tube and to Google using Dawn Kernagis and/or NEEMO. I recommend it, it's very interesting, indeed!
Inside Aquarius, Dawn 2nd from left
Environmental News Sharkwater 2 Will Be Completed to Honor Rob
Stewart By Shelley Collett, Feb 13, 2017
Cover from Sharkwater when the club watched it at the June
Dive-In 2016.
On Rob Stewart’s final dives, he was filming for the
sequel to his award-winning Sharkwater movie. The
as-yet unfinished film, Sharkwater: Extinction, was
close to being complete. Rob’s parents, Brian and
Sandy Stewart, will ensure the film’s completion to
honor their son’s tireless conservation work.
Since its release in 2006, Sharkwater has received
over 50 awards across the world. It earned Rob
world-wide acclaim, both as a filmmaker and
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 4
conservationist. It also led more than 80 countries to
enact shark-finning bans. Stopping the decimation
of shark populations due to shark finning was a
cause near and dear to Rob’s heart.
The Stewart Family Statement
“The outpouring of love, support, encouragement
and prayers we’ve received from across the globe
since Rob went missing continues to be
overwhelming. We’d like to reiterate our profound
appreciation and respect for the U.S. Coast Guard,
the three levels of Canadian political officials who
offered their assistance, and all of the many
professionals and selfless volunteers who
committed their time and resources in trying to
bring our son and brother home safely.”
“Our hearts are broken. While we are overcome
with grief, we know in our hearts that Rob is at
peace and that he would want us to continue his
mission to save the sharks and the oceans, and to
inspire the world to protect and nurture our planet.
We are committed to realizing Rob’s goals and will
not rest until the change he fought for tirelessly is
achieved.”
Source:
http://scubadiverlife.com/sharkwater-2-will-be-
completed-to-honor-rob-stewart/
Oil Drilling Threatens Recently Discovered
Amazon Reef By Jessica Macdonald Feb. 14, 2017
In late January, the world saw the first photographs
of a recently discovered coral reef near the mouth of
the Amazon River. Initially found in 2012 and
officially announced in 2016, a team from
Greenpeace first documented the Amazon reef
earlier this year. The organization hopes that its
images will help protect a discovery that’s already
threatened by the specter of human greed. Even
though the reef may represent a unique marine
biome, oil giants Total and BP have initiated plans
for exploratory drilling in the area.
What makes the Amazon reef special?
Although reef conservation is always important, this
reef is particularly deserving because of the unique
conditions under which it exists. Most corals
depend on ample sunlight and consistent salinity
levels. The Amazon reef, however, thrives at the
confluence of a freshwater river and the saline
Atlantic Ocean. Sunlight is scarce because of the
corals’ depth and the high levels of sediment carried
out to sea by the Amazon River. But despite all the
odds, this fascinating reef supports at least 73
different species of fish. There are also as
uncounted numbers of corals, sponges and
invertebrates.
Researchers discovered the reef in 2012 when they
visited Brazil to research the Amazon River
plume’s effect on the ocean’s ability to absorb
carbon dioxide. One of the scientists, Rodrigo
Moura, decided to scout for potential reef sites at
the same time. Previous scientific papers, which
recorded surprising numbers of fish caught at the
river’s mouth, inspired him. The team used sonar to
map the area. Using samples dredged from the
seafloor, they confirmed their suspicions that a reef
existed below the plume. They found corals and
subtropical reef fish, confirming a reef that
scientists now think covers around 3,600 square
miles.
The reef under threat
Currently, scientists have mapped less than 5
percent of the Amazon reef. “It has huge potential
for new species,” says Federal University of Pará
researcher Nils Asp. However, scientists may be
running out of time to study the reef. Less than a
year after its official announcement, the region is
already at risk. Together, Total and BP own five
deep-water exploration licenses in the Amazon
River mouth-area. Both are currently applying for
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 5
exploratory drilling permits.
If the government approves the permits, one of
Total’s drilling blocks is just five miles from the
Amazon reef. This puts the ecosystem at constant
risk of an oil spill. Asp says a spill would
“[dramatically] affect the reef, as well as the
mangrove coast of the region, which is ecologically
highly connected with the reef system.”
A spill in the area would also affect the Amazon
River basin, home to rare species like the
Amazonian manatee and the hawksbill turtle.
Nevertheless, the Brazilian government is expected
to approve the drilling permits in a matter of weeks
even though the accompanying environmental risk
assessments were submitted before the paper
announcing the reef was published.
Protecting the reef
Greenpeace designed their recent expedition to the
Amazon reef to make the Brazilian government take
interest in the future of this exceptional discovery.
The team took photographs of the reef’s deeper
sections with submersibles. The organization hopes
that the images will add weight to ongoing research
and lead to protective measures. The photographs,
shot at around 700 feet (213 m), are incredibly
clear. They showing colorful corals and inquisitive
fish, including crayfish, angelfish, butterflyfish and
squirrelfish. Regardless of the permits, scientific
research will continue on the reef.
Source: http://scubadiverlife.com/oil-drilling-threatens-
recently-discovered-amazon-reef/
Cayman Brac diver removes knife from shark By James Whittaker, March 2, 2017
A screen grab from a video shot by divers shows a large knife
stuck in the nurse shark’s head at a dive site in Cayman Brack.
– Image: Courtesy of Brett Johnson
A scuba diving instructor was leading a group of
tourists on a dive off Cayman Brac when he made
the bizarre discovery of a shark with a kitchen knife
sticking out of its head.
Brett Johnson coolly swam down and removed the
knife from the shark, which appears to have
survived the ordeal.
The incident has sparked new concern about
treatment of sharks, which are a protected species in
the Cayman Islands.
Mr. Johnson, 30, who works for Reef Divers, said it
was an upsetting sight. He said he had been leading
the dive group on Snapper Reef on Monday when
he spotted the nurse shark lying in the sand.
“At first it looked like it was just sleeping as most
nurse sharks usually are, but then we noticed
something coming out of its head.
“I can’t say what happened or why it ended up
getting knifed in the head, but fortunately it came
out easy enough and the shark seems to be doing all
right. It was seen again on Wednesday swimming
around the same reef.”
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 6
He said the incident was concerning.
“Sharks are an important part of the ecosystem and
there is no reason to kill them.”
Sharks have been protected in the Cayman Islands
since 2015 when the relevant section of the National
Conservation Law came into force.
Mr. Johnson believes the incident shows some
fishermen could use a reminder of the new rules.
“It would be great it all public docks and boat
launches had signs posted on them reminding the
public that it is illegal to take sharks from Cayman
waters,” he said.
Source: https://www.caymancompass.com/2017/03/02/caym
an-brac-diver-removes-knife-from-shark/
Log Book Chester divers film ghostly underwater footage
of world’s first steam powered submarine By Kelly Williamss, Jan. 24, 2017
An underwater image of the final resting place of the
Resurgam, lying in waters off Rhyl (Photo: Justin Owen)
Scuba divers from Chester have captured dramatic
underwater images of world’s first steam powered
submarine.
The Resurgam, which sank on its maiden voyage
off the coast of Rhyl in 1880, was lost for 115 years
until it was found 50ft beneath the waves.
Now scuba divers from the Chester branch of the
British Sub-Aqua Club, which has its national base
in Ellesmere Port , are to tell its fascinating story in
a TV documentary.
The Resurgam, 'I will rise again' in Latin, was built
on the Wirral and is to feature in a 10-part History
Channel series Combat Ships, about how
technology transformed naval warfare.
Scuba diver and underwater heritage expert Chris
Holden, of the Chester Sub-Aqua Club based at the
City Baths, is one of two licence holders of the
Resurgam, giving him responsibility for helping to
protect the wreck.
The 68-year-old features in the programme and said
the wreck was discovered by Chester diver Keith
Hurley in 1995.
He explained: “Keith was investigating what a
fishing trawler had snagged in its nets and
discovered it to be the wreck of the Resurgam.
“It’s believed the wreck had been pulled up by a
fishing vessel and dropped in its present location or
had been buried under the seabed and exposed
during the excavation for a nearby pipe-line.”
The 45ft (13m) submarine was built in Birkenhead
in 1879 and cost about £1,400, a small fortune by
early Victorian standards. Steam powered and large
enough to carry three sailors, it was designed to be
able to approach an enemy vessel by stealth.
In 1880, after a successful trial in the Great Float
and Egerton docks at Wallasey and Birkenhead, it
set off for Portsmouth where it was to be
demonstrated to the Royal Navy as the latest in
Victorian naval technology.
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 7
After stopping at Rhyl for modifications, she
continued her journey, before shipping water and
sinking around five miles off the coast of the North
Wales resort.
SAC diver Justin Owen, from Chester , has now
released a gallery of dramatic never-been-seen
images showing divers exploring the wreck.
Amateur photographer Justin, 42, also recorded rare
video footage of the wreck, which was built and test
launched in Wallasey Docks, having been designed
by the Reverend George Garrett, curate of Moss
Side in Manchester.
He said: “It is great to have the opportunity to dive
on something that’s completely unique. It’s an
archaeological relic and a lot of people don’t know
it’s right on their doorstep.
“It’s quite a challenging dive as the site is exposed
to the tides and bad weather and the visibility can be
very poor. So it’s important to be able to record
what is down there, so people can see it for
themselves and learn more about it.”
Source:
http://www.chesterchronicle.co.uk/news/chester-
cheshire-news/chester-divers-film-ghostly-
underwater-12494938
500lb Nazi bomb detonated off England’s south
coast By Feb 22, 2017
royalnavy.mod.uk
More than 70 years after they fell, the bombs of German Luftwaffe planes still pose a threat to modern day Britain, with members of the Royal Navy called into tackle an unexploded WWII device in Portsmouth early Wednesday. The terror of Nazi German sorties over British cities ended after Adolf Hitler’s forces were defeated in Europe during World War II. However, memories of the bloody conflict still lurk in the 21st century, as evidenced by the discovery of a WWII bomb beneath the waters of Portsmouth harbor. The harbor is currently being prepared for the arrival of a new 65,000-ton (metric) aircraft carrier and the unexploded bomb was found in the early hours of Wednesday morning by a ship dredging at the entrance to the busy port. Pictures of the device posted online by the Royal Navy show a rusted metal shell, identified as a German SC250 explosive. The 500lb (227kg) device would have been dropped by Luftwaffe bombers on their way over the United Kingdom between 1940 and 1944.
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 8
According to the Royal Navy, a team of divers were dispatched to the area and the bomb was brought further out to sea, off the Isle of Wight, where it was detonated safely. Footage of the Royal Navy disposal operation shows the WWII bomb erupting beneath the waves of the English Channel. “Portsmouth-based Southern Diving Unit 2 towed the bomb away from the harbor, lowered it to the seabed, and planted explosive charges for a controlled detonation of the device. Shortly after 11am, it was destroyed in a plume of smoke and spray,” a Royal Navy statement said. The local port authority shut down the harbor for hours after the early morning discovery. The incident saw disruption to shipping in the area, with Condor Ferries forced to delay its service to Guernsey.
Source:
https://www.rt.com/uk/378294-wwii-nazi-bomb-
portsmouth/
Invisible Crystals AlertDiver.com By Francois Burman, Pr. Eng, MSc
Polymorphic crystallization inside hoses has recently emerged
as a hazard divers should be aware of.
Scuba equipment failure or malfunction is a
relatively rare factor in diving-related accidents and
fatalities. When it does occur, the most common
and hazardous malfunctions involve regulators and
buoyancy compensator (BC) power inflators.1
Thus, a recent report to DAN® of a regulator failure
was not necessarily surprising, but the cause in this
particular case turned out to be quite unusual.
Although the diver involved in the incident
managed the situation very well, and no one was
harmed, an inexperienced or nervous diver might
not have been so fortunate. It was particularly
strange that although the diver's cylinder was not
empty, the gas flow had slowed and then ceased in a
way that resembled an out-of-air situation. Closer
examination of the equipment led to a puzzling
discovery: A large amount of yellow crystallized
material was blocking the inside of the braided
second-stage regulator hose. The hose had been in
use for a few years but showed no external
abnormalities or signs of deterioration.
While trying to solve the mystery, we discovered
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 9
this was not an isolated case. The same situation
occurred July 22, 2015, and was reported
subsequently in a technical diving blog.2 Further
reports from a hose manufacturer and at least one
equipment-servicing workshop in a popular diving
region revealed that these were not isolated events.
Although no injuries have been reported, the
discovery prompted a wider, global investigation,
which is ongoing.
Degradation is a slow process, invisible until there is a total
failure.
Analysis revealed the culprit to be a form of
polymorphic crystallization — a phenomenon
associated with cyclical heating and cooling at oil-
water interfaces.3 In both incidents, the
crystallization seemed to be related to the molecular
structure of the internal tube. The current theory is
that repeated cyclical heating and cooling of the
hose lining promotes this form of crystallization in
materials either unsuitable for this application or
affected by certain chemicals or bacteria. The sun
heats the hose, then the flow of breathing gas cools
down the internal surface of the hose again. This
process recurs with each dive, and the crystals grow
and accumulate over time. Enough crystals
eventually form to encroach on the gas flow, or they
migrate toward the second-stage regulator, resulting
in significant failure of the breathing device.
So far the reported incidents have been in tropical
climates with gear that is several years old. We have
not received reports of this problem with vinyl
hoses, and given the number of braided hoses out
there (both as original components and replacement
parts) the incidence is likely quite small. But
because this hazard threatens divers' air supplies, it
is of great potential interest to the dive community.
The challenge is determining how best to respond to
this discovery. It's important to identify what divers
need to know right now as well as what
precautionary maintenance guidelines and early
detection strategies they should implement at this
stage.
The standard safety recommendation regarding
regulator hoses has been that they should be
inspected regularly for signs of external
deterioration. Disintegration or abrasion of the outer
rubber coating eventually predisposes hoses to
rupture during pressurization or even when in use.
Rubber hoses are quite prone to this condition,
which is why polymer-braided hoses were
developed. But herein lies the problem: The outside
of braided hoses can appear normal, flexible and
free from obvious abnormalities, while a
deteriorated internal surface would be completely
invisible to a cursory external inspection.
This open hose shows the extent of degradation.
It would be premature to speculate that this
deterioration is limited to braided hoses. Previously,
hoses comprised a rubber inner hose, a single braid
layer for reinforcement and finally a rubber outer
sealing layer. Today the rubber inner hose is
sometimes replaced with a polyurethane or nylon
hose (referred to as thermoplastic). The middle or
reinforcing layer is a polymer-filament braid, and
the outer layer is either a second braid — which has
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 10
the advantage of indicating when the inner hose has
a leak — or a polyurethane or synthetic-rubber
sealing layer.
Newer second-stage hoses with a thermoplastic
inner layer may be vulnerable to degradation. This
risk does not apply to internal layers of synthetic
rubber, which appear to be impervious to this
phenomenon. DAN Research would normally wish
to conduct more in-depth analysis with a wider
sample of defective hoses, but because this is a
potential hazard to regulator function we prefer to
err on the side of caution and report this
phenomenon now.
What does DAN recommend?
DAN has contacted manufacturers of outer braided
hoses to assess possible causes and precautionary
measures, and we feel it is important to advise
divers as follows:
• All regulator hoses, including braided hoses,
have a limited service life regardless of
external appearance or reinforcement and
protection provided by hose protectors or the
braiding itself. The failed hoses we have
seen are more than five years old.
• The internal section of newer hoses with a
thermoplastic inner layer appears to be
uniquely prone to polymorphic
crystallization, especially in hot, tropical
locations. The phenomenon appears to be a
gradual process, but the disruption of gas
flow and regulator function is unpredictable
and invisible to external inspection.
• If there is any indication of gas-flow
restriction, particularly when using a newer
hose, the diver should immediately stop
using the regulator. Perform a careful
inspection of the regulator and the hose. If
the regulator is not the cause, suspect the
hose.
• Physically examine hoses by squeezing
them every inch or so to assess whether they
exhibit the same degree of flexibility. Any
change in resistance while squeezing along
the length of the hose would be a sign of a
possible problem. This test is much easier to
perform with braided hoses than with
harder, outer rubberized hoses.
Replace old hoses, limit hoses’ exposure to high temperatures,
and follow manufacturers’ maintenance recommendations.
Following this advice, especially the
recommendation to regularly inspect hoses, will
give you greater confidence that your hoses will
perform as they should. Advocate for dive safety by
promoting the following ABC strategy:
• Air awareness: Make all divers aware of
this problem and the need for regular
equipment servicing.
• Buddy breathing: Practice emergency
air-sharing procedures to ensure
preparedness for and appropriate action in
the event of regulator failures or out-of-
gas situations.
• Customer choice: Ensure that any hose
purchased displays on the ends
information about the manufacturer, the
production date and the standard used.
Check that this information is consistent
with that on the packaging.
We ask all divers who observe this inner-hose
degradation to please email DAN at
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 11
[email protected], preferably providing pictures
that show the condition of the hose. This will enable
us to capture as much information as possible so we
can learn more about this phenomenon. We will
share any new findings, cautions and advice with
the diving community.
Source: http://www.alertdiver.com/crystallized_hoses
Parting Shots Photos from Steve Locsey
Miscellaneous photos from Dawn Kernagis presentation
A PUBLICATION OF THE COLUMBUS SEA NAGS HTTP://WWW.SEANAGS.COM Apr. 2017
S’NAG-A-NEWS Page 12
AD Rates
S’Nag-A-News monthly advertising rates are as follows: Business Card $4.00 1/4 Page $10.00 1/2 Page $20.00 Full Page $30.00 Club members receive a 10% discount on advertising rates. Non-members receive a 10% discount for three months paid in advance.
NEXT MEETING: 8:00 p.m., Plank’s Café, Thurs., May
4, 2017. Underwater Photography by Mark Thomas
OFFICERS 2017
President Steve Ranft
(614) 309-4138
Vice President
Ryan Jones
Treasurer
Glenn Mitchell
(614) 272-2448
Secretary
Dave Foley
Newsletter Editor
Gerry Kubatska
(614)307-3668
The Columbus Sea Nags