DiveDIRs blog

Blog posts from Gareth, Imogen and Neil

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Posted by on in Skills

I often ask divers if they feel any rise in tension as the bottom portion of the dive comes to an end and the prospect of the ascent enters their mind. It may reassure you that I have coached divers with thousands of dives who have answered "yes" to that question.

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Posted by on in Skills

This is an expansion on request of an earlier article I wrote about trim that now includes some images to try and explain what I was talking about, and also includes some tips on how to actually improve trim in the water. Let’s start with a definition: what the hell is trim anyway?

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Posted by on in Skills

There's a few tricks I've picked up over time teaching people that I thought I would share about the risks involved in putting up SMB's, and how best to avoid any problems.

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Posted by on in Skills

This article outlines the process and reasoning behind the GUE approach to a valve drill. The basic valve drill involves closing and opening all three posts on a twin set starting with the right post, then the isolator, then the left post. First of all, here's what it is supposed to look like....

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Posted by on in Skills

Firstly, let’s clarify a few issues. The name. GUE calls it a “valve drill”. I have heard instructors from other agencies call them the same, but divers from all other agencies refer to it as a “shutdown”. There is a reason behind the alternative wording, but for simplicity's sake I am going to ignore the semantics and use the terms interchangeably.

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