How To Do The Valve Shutdown Drill (V-Drill) | Tec-40 Scuba Diving Training

How To Do The Valve Shutdown Drill (V-Drill)
The Valve Shutdown Drill (V-Drill) is an essential skill for all Technical Divers and one of the most difficult and challenging skills in Technical Diving training. Performing the skill while in good trim and neutral buoyancy will test the skill of any proficient diver.
It can take as little as 128 seconds for a full scuba tank to empty due to a valve or hose failure. In the event of an equipment problem resulting in rapidly escaping gas from the tanks, a well trained Tec Diver should be able to reach back and shutdown the offending valve to save gas. In an emergency situation, speed and procedural accuracy, over form, is key. Gas can escape at a rapid rate of over 1,000 liters per minute. The PADI Tec-40 certification performance standard requires the Tec Diver to shut down and reopen all 3 valves within 60 seconds.
The V-Drill skill hones the Tech Diver to develop a disciplined mindset, agility and motor skill to shut down and reopen all 3 valves in a BackMount Doubles system. The V-Drill can start and end in any valve. What matters is the proficiency to shutdown and re-open any valve depending on the situation.
This is a video of my Tec student learning and practicing the V-Drill. While not perfect, he is still learning and completed the skill in 45 seconds - each shutdown sequence was done correctly.
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If you’re in the Philippines (Manila) and would like to learn how to Dive or take Advanced / Technical Diving courses, send me a message. I train divers at Bauan and Anilao Batangas. If you’re a certified diver, come and join us for a fun dive and experience the GoDivePH difference. Escape the city. Explore a new world. Expand your limits.
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Please watch: "How To Fix A Leaking SPG for $4 | Easy Scuba Fixes"
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[@godiveph1287]

The Valve Shutdown Drill (V-Drill) is an essential skill for all Technical Divers and one of the most difficult and challenging skills in Technical Diving training. Performing the skill while in good trim and neutral buoyancy will test the skill of any proficient diver. It can take as little as 128 seconds for a full scuba tank to empty due to a valve or hose failure. In the event of an equipment problem resulting in rapidly escaping gas from the tanks, a well trained Tec Diver should be able to reach back and shutdown the offending valve to save gas. In an emergency situation, speed and procedural accuracy, over form, is key. Gas can escape at a rapid rate of over 1,000 liters per minute. The PADI Tec-40 certification performance standard requires the Tec Diver to shut down and reopen all 3 valves within 60 seconds. The V-Drill skill hones the Tech Diver to develop a disciplined mindset, agility and motor skill to shut down and reopen all 3 valves in a BackMount Doubles system. The V-Drill can start and end in any valve. What matters is the proficiency to shutdown and re-open any valve depending on the situation. This is a video of my Tec student learning and practicing the V-Drill. While not perfect, he is still learning and completed the skill in 45 seconds - each shutdown sequence was done correctly. If you’re in the Philippines (Manila) and would like to learn how to Dive or take Advanced / Technical Diving courses, send me a message. I train divers at Bauan and Anilao Batangas. If you’re a certified diver, come and join us for a fun dive and experience the GoDivePH difference. Escape the city. Explore a new world. Expand your limits. eMail: [e-mail]

[@eriknodland8352]

Nice, looks like he is getting the hang of it. Shouldn’t he breathe down the reg he is shutting down until it is empty and off before switching? Preserve as much gas as you can before you lose it, preps for the real life reason to shut down a regulator as well that way.

[@TheSmileyTek]

That was perfect. Tec Diving looks like fun!

[@timgosling6189]

Slightly unrealistic to close and immediately open each valve in turn just to hit a time limit. There is no real scenario that would require this. It would be better to go: check alt supplies gas, close right, clip off primary and purge to prove off, close isolator, open right, check primary supplies gas, swap to primary, close left, prove left is off, open left, open isolator.

[@hussienalnaimat35]

indeed!!

[@cortomaltese6250]

Really. I dont get what is the point of this drill otherwise. Just closing and immediately opening. Makes no sense

[@gregorymcgraw5940]

Its is just a drill, alot of drills are just about ( knowing to know )

[@TheRwhunited]

Shouldn’t you shut down the isolator before the side? To preserve the second cylinder if you’re having a free flow etc?

[@LeathercraftMasterclass]

What I thought too. TDI trains that, but I've heard GUE doesn't. Makes sense to shut down the manifold first.

[@peanutsee]

Depends on the situation.

[@victorkochkarev2576]

It looks simple, I struggled and suffered doing it.

[@godiveph1287]

Practice this on land first then the water. It’ll help.

[@victorkochkarev2576]

​@@godiveph1287 I gave up and switched to a side mount configuration.

[@jayschier495]

I assume this wasn’t a pass?