Deployment of SMB

diverklondike

Another vote on that one... Works great!

Dive Safe..

Mark

decoweenie

No, it wasn't me.

Can't take credit for it, but now that you have mentioned it, I will have a try since I also use the APD-bottle DSMB system for a long time now - it is great!

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pattimegdiver

Hi Andy
I have tried a few ways, but i went back to the way I was taught. By using the reg from my BO cylinder, I would have to put the reg back in its place with one hand and hold on to the reel with the other hand and if there is any current - holy crap .... Using a small bottle, just allows one more thing that could have problems.

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Jim

Likewise - main SMB and back ups as JPT - no issues what so ever - hassle free deployment in seconds completely redundant from your other kit.

SMB sits in my leg cargo pocket until departure with reels on rig.

Cheers.

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Jimbo

decoweenie

Such as ?

I don't know if you have seen/tried one before, but it is very simple and fast to deploy a DSMB with such a system, especially with a CCR.

It only takes a few seconds to undo the velcro and turn the valve on - quick and clean. As mentioned above by someone else, the back-up action is to fill it manually (by stage, wing, etc) if needed.

On OC, I just use the exhaust bubbles from normal breathing to fill the DSMB. That also doesn't change the buoyancy since it only need a few breath to fill from depth.

Using the wing will maintain your neutral buoyancy while you are still hanging on to the DSMB at depth, but as soon as you released it, you will be negative.

At the end of the day, just do whatever floats your DSMB... I have tried/used just about all different systems available, and prefer the bottle system personally.

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"...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..."

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Mdemon

I've tried firing the autoblob velvro attached. Velcro remained done up and the gas just vented out of the OPV. It would be next to impossible to turn it on by mistake though.

Not really a reason to stop anyone buying what is really a great bit of kit. Just remember to fill it. I concertina the red bit before diving for ease of deployment. Once out, I just roll it up until I fill it. It's obvious when it needs filling then.

(Red autoblob, red manual APD, yellow CO2 emergency blob like Chasey)

Dutchy

Sounds like a smart idea being able to inflate without much boyancy change and only then release it.... I'll give it a try. For now have some green for the suggestion....

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UKSteve

Much the same here... but something to watch with the "crack bottle". The one way valve is simply a rubber sleeve over the inlet peg. It can get torn due to the flow and thus let water back into the bottle when it empties. This can cause rapid corrosion in the bottle and also transfer water into the tank from which it is filled.

I would tend to suggest better practise is to briefly open the bottle and then close it prior to releasing the DSMB. From anything over 20m it will be full by the time it reaches the surface.

Steve

mempilot

First, I use the Halcyon closed-circuit liftbags. They are fitted with a schrader type valve that does not lock. You just press the low pressure inflator from your bc, drysuit, or offboard bailout reg onto the lift bag's male valve and you get a nice quick inflation. The cc bags have an OPRV on the top to burp excess gas on the way up. They almost always hit the surface full of gas, and they can't spill like an oc bag. I only deploy with finger spools right now, as I've had hang-ups with using a safety spools and had to let the whole thing go, neccessitating the use of the backup.

I've been using the offboard bailout bottle's LP inflator hose since it is handy. Because the bag inflates quickly, you can get a big initial fill in the bag before it throws off your bouyancy. Since the loop is untouched, there is no problems with loss of bouyancy there.

The only problem I have with the Halcyon lift bags is that I can't get one in yellow. I have a 50lb LB and a very large SMB. I use the SMB in big seas or as a backup. Without a multicolor combination of orange and yellow, I signal a problem by attaching a slate to the bag.

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MEM "Da Pilot"

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Explorer

Same. Drysuit whip.

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