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How to Choose a Diving Knife

Diving Knife

(This is an excerpt about diving knife options taken from Jonas Arvidsson’s book Diving Equipment: Choice, maintenance and function).

“If you look at the size of many diving knives you might be led to believe that they are primarily weapons. This is not the case, a diving knife is a tool used for picking, digging, and measuring. You face a minimal risk of entanglement underwater, so it is also useful for cutting yourself loose from fishing nets or line, and seaweed or kelp. For this reason, it is important to ensure the knife remains sharp and that it has a serrated edge since this is actually more useful underwater. Continue reading How to Choose a Diving Knife

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Choosing a Diving Suit by Water Temperature

Divers in wetsuits heading for a shore dive

Choosing a diving suit can be a perplexing task. If you’ve dived in the exact same conditions before (and kept a note in your log book) then it should be easy. But what if not? Here Jonas Arvidsson offers a simple explanation of the options available. Continue reading Choosing a Diving Suit by Water Temperature

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Free Preview of ‘Diving Equipment’ by Jonas Arvidsson

Closed-circuit rebreather

This is a free preview of the paperback version of ‘Diving Equipment: Choice, maintenance and function’ by Jonas Arvidsson, provided by Google Books. Click the button below to view the preview. Use your ‘Back’ button to return to this page afterwards. See below the preview for help.


The controls are at the top of the preview and the scrollbar to the right of the preview. For more details about the book follow this link: Diving Equipment by Jonas Arvidsson.

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‘One of the few diving titles that everyone should own’

review of Diving Equipment

We scuba dive only by virtue of technology. Diving equipment directly affects our comfort, efficiency and safety underwater and at the surface. And yet, despite our dependence upon it, we often overlook diving equipment’s importance, a case of not seeing the wood for the trees. Like most experienced divers I have owned and rented lots of scuba gear, but I have also taught people to use it, sold it, written about it in books and reviewed it for diving magazines.  In my experience there is a huge information vacuum that this new guide, Diving Equipment: Choice, maintenance and function by Jonas Arvidsson fills perfectly. It is one of the few diving titles out there that everyone should own and, in my view, should be a required text for those diving professionals working in instruction, supervision or sales. Continue reading ‘One of the few diving titles that everyone should own’