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you truly missed an opportunity to

educate, and you should admit that

you took those pictures for their

shock effect and the admiration

that would come your way from

all the other narcissistic diving

photographers.

Perhaps the next time one of

your pictures goes viral, you will

use it as a teachable moment. I can

assure you that a person does not

have to be a diver to understand,

learn and appreciate what our

ocean holds.

— Kayleen Lewis, via email

I wanted to say that Stephen

Frink’s article “Perspective

Distortion” in the Fall 2016 issue

was nicely done and very timely.

I had a similar experience with a

cover photo I took of wild spotted

dolphins a few years back. More

than a few people wrote letters

describing how horrified they were

that the photographer and scooter

diver had “run down” dolphins for

a magazine cover.

Anybody who knows anything

about dolphins can tell you it’s

impossible to run down wild

dolphins underwater. Of course,

these writers didn’t know that the

scooter diver was a noted marine

mammal expert or that dolphins

(even those in captivity) love speed

underwater, and a scooter helps us

(slow, awkward humans) make the

game of chase a little more exciting

for them.

We are now fully into the age

where everyone is an expert on

just about everything because of

social media.

— Joseph C. Dovala, via email

PREDIVE SAFETY

During the investigation of a recent

scuba death, the backup pony bottle

was found to have a serious fault

in the second-stage regulator. The

diaphragm in this regulator had

pulled out of the retaining seal at

the rim for more than one-third of

the circumference. Fortunately, the

diver had not attempted to use this

regulator, so it was not responsible

for the tragic outcome. This fault

can apparently occur with exposure

to excess heat (e.g., in a car trunk in

the sun), ozone and oil or grease.

This finding highlights the

importance of fully checking the

function of every piece of your life-

support equipment before each

dive. It is possible this diver turned

on the pony bottle and pushed the

purge button. He clearly did not

try breathing through it, however,

or checking the inhalation bias

by immersing it in water, front

first, to confirm that it would start

to free flow before water filled

the mouthpiece. The predive

equipment check matters. Do it all

— your life may depend on it.

AD

— George Harpur, Ontario

ALERTDIVER.COM

|

15

WRITE TO US

Tell us what’s on your mind

by writing us at:

MAIL

Alert Diver,

6 West Colony Place

Durham, NC 27705

ONLINE

Send email to:

letters@dan.org

All letters included in this column are

subject to editing for length and content.

800-328-2288

sales@caradonna.com

All packages include 7 nights, 6 days of 2-tank

boat dives, airport transfers, taxes and service

charges. Rates are per person, double as noted and

subject to availability and standard terms and conditions.

Valid for select dates in 2017.

CSOT#2111993-40 • WSOT#603254369 • FSOT#38781

LITTLE CAYMAN

Little Cayman Beach Resort

Reef Divers

All Meals

Use of Dive Computer

Price $1500 pp/dbl

Valid: 8/19/17-10/20/17

CAYMAN BRAC

Cayman Brac Beach Resort

Reef Divers

All Meals

Cocktail Reception

Price $1325 pp/dbl

Valid: 7/30/17-10/29/17

GRAND CAYMAN

Cobalt Coast

Grand Cayman Resort

Reef Divers

Unlimited Shore Diving

Breakfast and Dinner Daily

Price $1125 pp/dbl

Valid: 7/30/17-12/17/17

C

M

Y

CM

MY

CY

CMY

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Cayman-AD-Jan2017.pdf 1 1/5/2017 3:49:29 PM

COURTESY OF JOE DOVALA