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VALVE DRILL
VALVE DRILL PDF Print E-mail
Written by Administrator   
Sunday, 15 May 2011 19:55

Valve drill

VALVE DRILL  The valve drill is a key skill when diving a twinset and something that is fully taught as part of the GUE fundamentals course. The purpose of the valve drill is to make sure your valves are in the right position (which is fully open if all are working properly) and that you can open and close them while in control.  Make sure you have the full attention of your team when manipulaing valves in the water.

 

Do not underestimate the importance of a quick and efficient shutdown if a problem occurs. Those who struggle to shut down, yet rely on their twinset for redundancy, are fooling themselves, and those they dive with, that they are in some way safer than if they dive with a single tank. At 60 metres a low pressure hose failure will empty a twinset in around 20 seconds. It is a skill worth refining to the point that it is quick, effortless and instinctive. So how?

The basic doubles 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.

 
Last Updated on Sunday, 15 May 2011 20:29
 

Clare Pooley

There are few women active at the top of technical diving, but one of the most active is Clare Pooley.

Teaching for both GUE and IANTD, Clare Pooley can be found underwater anywhere from cold water deep wreck dives to the crystal clear Mexican caves, enjoying single tank reef dives through to mixed gas multi stage/scooter cave dives in the colder waters of France or here at home.

Clare teaches OC diving in the DIR style in the UK and in Europe, encouraging streamlined gear and good technique in all students whether they seek intro tech, trimix or cave certification.

Howard Payne

Howard Payne is passionate about open circuit technical training and considers himself fortunate to have learned from visionary explorers Phil Short, Jarrod Jablonski and Richard Lundgren.

Now teaching exclusively for IANTD, Howard runs open circuit technical courses to normoxic trimix level both here in the UK and in the warm, clear waters of Malta.

Although he loves UK diving, even he would concede that there's nothing quite like running a mix course on a wreck like the Le Polynesien! Howard is currently involved with a deep wreck exploration project in Malta but he also has a long-standing love for cave diving.