Why don't wings have shoulder dump valves?

[AfterDark]

If I have no air in my bc I also sink with a full tank.
Do you not?
The important issue if I can swim up with no air in my bc with a full tank.

I think that's the idea. How else does one start off?

 

[Centrals]

I think that's the idea. How else does one start off?

Some people just like to.......

There are several factors. Is the person wearing a wetsuit? How much does their gear weight? Do they have a steel backplate, or other heavy gear? Is any of their gear positively-buoyant?

I do not sink when wearing a wetsuit. The only time I've dove without a wetsuit recently was in a pool & I had a steel backplate, no weights, and a 50cu tank, and I sank easily. However, with my 5mm wetsuit, it's a struggle to get down below the surface if I don't have enough additional weight. I typically use 6lbs in addition to my steel backplate, and even then I might be slightly under-weighted.

I agree that a person should be able to swim to the surface with no air in their BC and a full tank, if appropriately weighted.

I also have backup buoyancy devices, but that's perhaps outside the scope of this topic.

"Sound like ......"
Whether that diver was over or under weight is another story! I never bothered to check.
I do understand the meaning of benefit of the doubt.

 

[dumasjc]

I have noticed that a typical wing for a backplate/wing set up generally has a single dump valve on the butt, and that's it. They don't have shoulder dump valves.

Why is that?

With my current BCD, I generally like to use my right shoulder dump valve rather than my inflator hose. I can pull the shoulder dump valve with either hand, and I don't have to hold the inflator hose up.

Doesn't look that that's an option with a BP/W set up. What's the reason? Simplicity?

The Apeks WTX-D40 has a shoulder pull dump.

 

[RyanT]

I think everyone should dive what makes them comfortable. I like the feel of the Air2 in my big meatpaw,

What? You use an Air2???? Just kidding. A friend of mine, a tech instructor, uses one. Some folks gave him some static about it, and he pointed out that the large buttons just work well in his hand.

I'm not a fan of shoulder dumps and I (generally) like DIR, but sometimes I don't quite fit in the box. I like that folks can use options that work for them.

 

[Wookie]

What? You use an Air2???? Just kidding. A friend of mine, a tech instructor, uses one. Some folks gave him some static about it, and he pointed out that the large buttons just work well in his hand.

I'm not a fan of shoulder dumps and I (generally) like DIR, but sometimes I don't quite fit in the box. I like that folks can use options that work for them.

At least I don’t use split fins

 

[Wibble]

A butt-dump toggle could get caught too, but the bc still holds air when you’re head-up.

What toggle? You untie the toggles and throw them away. You then knit a Cobra Knot and tie that to your dump. Easy to find and hard to snag or catch

Edit: commenting only on the hip dump, not the shoulder dump which, should it fall off, would result in catastrophic loss of buoyancy in the vertical position

 

[elmo]

What toggle? You untie the toggles and throw them away. You then knit a Cobra Knot and tie that to your dump. Easy to find and hard to snag or catch

Yes, that’s what I’ve done on mine too. But it wasn’t the point I was making - when shoulder dumps fail open (less likely to without a toggle but it still happens) a diver loses nearly all bc buoyancy on the surface. That isn’t the case with a butt dump.

 

[Wibble]

Yes, that’s what I’ve done on mine too. But it wasn’t the point I was making - when shoulder dumps fail open (less likely to without a toggle but it still happens) a diver loses nearly all bc buoyancy on the surface. That isn’t the case with a butt dump.

(edited post)

 

[happy-diver]

When the wire for the pull corrodes and fails I'll replace it.

Ana, get with it, it's thick nylon ish fishing line these days, no more rusty stainless wire, but still the same crimps

 

[Ana]

Ana, get with it, it's thick nylon ish fishing line these days, no more rusty stainless wire, but still the same crimps

See? It takes so long to fail, I didn't even know they changed materials.