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Anton Swanepoel
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Deep and Safety Stops, including Ascent Speed and Gradient Factors (Diving Book 3) Kindle Edition

by Anton Swanepoel (Author) Format: Kindle Edition
3.9 3.9 out of 5 stars 16 ratings
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To stop or Not.


This book is the third book in the diving series after The Art of Gas Blending, Dive Computers and before Diving Below 130 Feet, and looks at what 'Deep Stops' actually are, and how these stops are calculated and used today.

This book looks at the research done and current understandings of deep stops, both for and against. The book’s aim is not to advocate or discredit the use of deep stops, but rather to be neutral and provide the reader with the most up to date knowledge, research and methods used by various groups, from military to recreational and technical diving, and how each has changed their diving due to their research.
Some of the topics covered are:

• Safety stops and their role in diving
• Ascent speed and how it affects your decompression
• Descent speed and how it affects your decompression
• Oxygen window
• Gradient Factors, in-depth explanation with example calculations and formulas
• Different kinds of deep stops
• How long to stop for
• Research done on deep stops
• Micro bubbles
• Diffusion speed and solubility
• How bubbles form
• Tribonucleation
• Thermal change during diving and decompression
• Exercise and diving
• Body’s reaction to bubbles
• Blood complement activation
• Smoking, fat, alcohol and Yo-Yo diving, their role in decompression
• Different algorithms

If you are interested to learn more about decompression for diving, then this book is for you.


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  1. Print length
    166 pages
  2. Language
    English
  3. Sticky notes
    On Kindle Scribe
  4. Publication date
    January 1, 2012
  5. File size
    1618 KB
  6. Page Flip
    Enabled
  7. Word Wise
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Editorial Reviews

About the Author

Adventurer and world traveler, Anton Swanepoel, hales originally from Pretoria, South Africa, but has called a number of exotic locations home. Educated as a software engineer, he worked for a large multinational company before deciding to travel the globe. Along life's journey, Anton became a skilled scuba diver and technical diving instructor, teaching for seven years while living in the Cayman Islands. His resume touts Tri-Mix instructor levels from multiple licensing agencies, and dive records over 400 feet.

Mr. Swanepoel has always loved travel and writing. In the past several years he's combined these passions, authoring and publishing a host of books, sharing secrets he's learned along the way. When he's not exploring an underwater landscape or racing a motorcycle down a stretch of highway, you'll find Anton visiting world destinations and chronicling his experiences.

Today, he is a full-time globetrotter and writer, having penned instructional guides for diving and travel, as well as a pair of fictional novels. His excursion titles are geared toward do-it-yourself travelers, who enjoy saving money and seeing the out-of-way places. His favorite destinations include, Machu Picchu, the mountains of Vietnam, and the Temples at Angkor Wat.

Product details

  • ASIN ‏ : ‎ B007IEEAIO
  • Publisher ‏ : ‎ Anton Swanepoel; 1st edition (January 1, 2012)
  • Publication date ‏ : ‎ January 1, 2012
  • Language ‏ : ‎ English
  • File size ‏ : ‎ 1618 KB
  • Text-to-Speech ‏ : ‎ Enabled
  • Screen Reader ‏ : ‎ Supported
  • Enhanced typesetting ‏ : ‎ Enabled
  • X-Ray ‏ : ‎ Not Enabled
  • Word Wise ‏ : ‎ Enabled
  • Sticky notes ‏ : ‎ On Kindle Scribe
  • Print length ‏ : ‎ 166 pages
  • Customer Reviews:
    3.9 3.9 out of 5 stars 16 ratings

About the author

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Anton Swanepoel

Anton Swanepoel

Brief content visible, double tap to read full content.
Full content visible, double tap to read brief content.

Adventurer and world traveler, Anton Swanepoel, hales originally from Pretoria, South Africa, but has called a number of exotic locations home. Educated as a software engineer, he worked for a large multinational company before deciding to travel the globe. Along life's journey, Anton became a skilled scuba diver and technical diving instructor, teaching for seven years while living in the Cayman Islands. His resume touts Tri-Mix instructor levels from multiple licensing agencies, and dive records over 400 feet.

Mr. Swanepoel has always loved travel and writing. In the past several years he's combined these passions, authoring and publishing a host of books, sharing secrets he's learned along the way. When he's not exploring an underwater landscape or racing a motorcycle down a stretch of highway, you'll find Anton visiting world destinations and chronicling his experiences.

Today, he is a full-time globetrotter and writer, having penned instructional guides for diving and travel, as well as a pair of fictional novels. His excursion titles are geared toward do-it-yourself travelers, who enjoy saving money and seeing the out-of-way places. His favorite destinations include, Machu Picchu, the mountains of Vietnam, and the Temples at Angkor Wat.

As a Technical Diving Instructor and Cave Diver with over seven years’ experience working in different places, including the Cayman Islands, I have come to believe that limits are what you set for yourself. I used to be afraid of water until I forced myself into a diving course, and then things just kept going and the thing I feared gave me what I dreamed of doing, travel. Having dived to over 400ft on open circuit, I realize how much of life we miss if we let fear run our life.

Sometimes, life is like a dark tunnel that feels like it is going to squeeze the life from you. However, if you just keep going, you are bound to come out the other side. I love writing, travel, diving, caves, motorcycles, and speed, but as a Reiki Master Teacher, I know you have to balance your life with love, and compassion. Be proud to stand firm in your quest for your dreams, but humble enough to ask for help in reaching them.

Customer reviews

3.9 out of 5 stars
3.9 out of 5
16 global ratings

Top reviews from the United States

Me
5.0 out of 5 stars Five Stars
Reviewed in the United States on March 31, 2016
Verified Purchase
nice addition to refer back to along with proper training materials
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Albrecht Salm
1.0 out of 5 stars Deep Stops: missed by a mile ...
Reviewed in the United States on September 8, 2012
Verified Purchase
At first, the title was interesting and the TOC looked promissing.
But then it appeared as a mingle-mangle of buzzwords, only skin-deep and
frowzy explained. So it is just for a diver regulars' table (after the 3rd. beer :-) ).

There are a lot things capable of being misunderstood, here only the biggest items
where a boner was pulled:
p. 141: " Buehlmann ... used only Nitrogen ...".
No: he did not! He used Heliox mixes intensively, but did relativly less work with Trimixes.

" ... relative diffusivity ... is all that matters."
No: it's not! It is the relative molecular weight; and this one goes via the
square-root into the diffusion constants.

"Buehlmann died before he could test his theories for Helium ..."
No: he did not! He died 03/16/1994 and working with Heliox mixes he did since the 60's.

p. 142: "Buehlmann himself added ..."
No: he did not!

p. 148 and 150: "... half time (M-value) ...
Half times are times, M-values are pressures (eg. fswa); so what???

p. 149: "The number of compartments and their half life values affect ... decompression they will predict."
No: without a dedicated M-value (or a tolerated tissue overpressure) there will be no deco-time at all.

These remarks yield as well for the others books, since they have been more or less boiler-plated
(if this verb exists in american english ... :-) )

As well the topical things like the "Copernicus" model or new dive computer technology are totally neglected.
9 people found this helpful
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Kindle Customer
4.0 out of 5 stars Deep and safety Stop, including Ascent Speed and Gradient Factors (Diving)
Reviewed in the United States on October 8, 2012
Verified Purchase
I'm always looking to increase my knowledge and this book does explain both schools of though and answered unasked questions that I had.

The best part about reading a book like this is that the author does not take a stand for pro or con just explains the facts after extensive research.

If you have questions on why safety stops are not as helpful at deeper depths, this is the book to read.
One person found this helpful
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Devildocdon
2.0 out of 5 stars As previously not there was a good portion of the text was either misinterprets or twists ...
Reviewed in the United States on November 18, 2014
Verified Purchase
As previously noted there was a good portion of the text that the author either misinterpreted or twists facts to his views or just outright misses the facts. I am not sure how his views came about but the most blaring corrections are noted by a previous reviewer, so I won't wast our time by rehashing them.

Good starting book to the precipice of technical diving. Just remember the mistake facts noted on the previous views and the other omissions notes.
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1234
3.0 out of 5 stars Three Stars
Reviewed in the United States on March 21, 2015
Verified Purchase
Pretty poorly written but some good information. If you can get them cheap they are worth a read.
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Top reviews from other countries

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Juan Allendesalazar
5.0 out of 5 stars La claridad de exposición.
Reviewed in Spain on January 12, 2020
Verified Purchase
Muy fácil y sencillo de leer. Habría que traducirlo al Español. Mucha gente estaría interesada. No hay literatura parecida.
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Richard A.
5.0 out of 5 stars a interesting complement.
Reviewed in Germany on May 26, 2013
Verified Purchase
It's always good to read around the topic. I dive frequently and now understand a number of topics better. Of course I will discuss this in more depth and know which questions I would like to explore in more detail.
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C. Cairns
1.0 out of 5 stars Poorly structured and very difficult to read
Reviewed in the United Kingdom on March 8, 2013
Verified Purchase
I had high hopes for this but as it turns out is is simply bits and peces you can find on the internet copied and pasted into a book with the authors stupid line drawings added in. Gave up after 50 pages it was that bad.
One person found this helpful
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