To wrist dump or shoulder dump that is the question?

[Dryglove]

I had my shoulder dump relocated to a forearm dump and like it much better. I leave my dump full open. The nice thing is as i am ascending and using the oral inflator to vent expanding air from my wing, my drysuit is venting at the same time. I have plenty of room for my compass between my dryglove and exhaust valve. See picture

 

[torbaydiver]

wingnut once bubbled...
Torbaydiver-

I think you're talking about an auto-dump valve. These are different than a cuff dump valve. A cuff dump valve would simply be your exhaust valve placed on your forearm. An auto dump valve is a small quarter sized valve placed on the forearm that is not adjustable. Since the auto dump is not adjustable you will usually see divers who use an auto dump with their standard shoulder valve as well.

Yes I know there different, as I have said !
Perhaps you should read my post again , and then yours

 

[CD_in_Chitown]

torbaydiver once bubbled...


I use a shoulder dump, the benefit being you can close it off completely when underwater which I usually do, with the cuff dump you can't close it off and can accidentally dump, I've also heard their more likely to leak!
The cuff dump seems to be more popular in the UK, but not sure why!
The guy I dived with on Sunday actually had both!

You said with the cuff dump you can't close it off. That is incorrect and someone pointed it out. Just learn from the experience don't argue an invalid point.

 

[IndigoBlue]

pipedope once bubbled...
Up to the elbows in ... stuff so I would not put a dump on wrist or cuff.

But that is me, the bottom dwelling, mud digging, TIR (tilling it right) pipedope.

I think that the upper arm location is best for most all diving.
There might be a good reason for a cuff dump or forearm dump in special operations but I can't think of what the circumstance would be.

I suppose it would be best to try it both ways, and decide for yourself. I prefer the shoulder location as well.

 

[BDub]

Yes I know there different, as I have said !

Not sure that you do...

with the cuff dump you can't close it off and can accidentally dump, I've also heard their more likely to leak!

You can close the cuff dump. It's the same as your shoulder dump, just moved to your cuff. An auto dump you cannot close, it is always open.

 

[torbaydiver]

Well it must be different overhear then, I have an apex high-profile auto shoulder dump and I can assure you that I can close it off , and the cuff dumps I have come across are nonadjustable!
ut:

 

[BDub]

I do believe some companies actually call their auto dumps cuff dumps. I think Diving Concepts calls them cuff dumps. I do know waht you're talking about. I think the question presented in this thread is whether to have the standard exhaust valve placed on the shoulder or the forearm.

 

[Arnaud]

cd_in_SeaTac once bubbled...


If you try the wrist dump put it on the outside of the forearm, you'll bang it less on gear that is clipped or slung to your left side and it's in the natural position to dump without having to contort.

Try being horizontal and then raise your arm, is it easier to get the outside or inside to that highest point?

I've been thinking about this one for a while. I was really 50/50 but looking at our favorite a-picture-is-worth-1000-thousand-words website, I decided to go for the inside position.

And I guess I won't really know until my next dive (Friday).

Re: the banging, my idea was that the valve would be more protected on the inside. It may "touch" my SPG when I clip it, but if the surge pushes me against the rocks, it'll be in a safer place. I've hit my shoulder dump pretty hard in the past.

 

[ColdH2Odvr]

My CF-200 has a shoulder dump. This is my first suit and I’ve used the hell out of it. I just started diving my Whites suit with a forearm dump (a few more turns to full open but effectively the same valve as the DUI). So far I have no preference. This is surprising because I expected to hate the forearm dump until I learned to dive it but I don’t. They both let air out when I want them to and neither let it out when I don’t. They dive a little differently (raise left arm instead of roll to the right) but it just didn’t seem to matter that much. A small bonus, the wrist (forearm, whatever) dump doesn’t get hung up on the harness strap when donning/doffing my rig.

There may be a dredging job coming up so I’ll get to try the pipedope test on it; forearm doesn’t seem optimal for mucking, we’ll see.

Dave

 

[pipedope]

shouldn't be a problem.

I often have to do things like, an inspect by feel on a pipeline that is 8-18" deep in mud. Fortunately, here in FL most of this work is in a wet suit.

Depending on the dredge you might want to keep the nozzle away from your body parts. The big Stanley hydraulic dredge we used a lot would suck a glove off of you or give you a big hickey in an instant. On the bright side it would provide lots of intertainment for the other members of the team.