Knobs on dump valves?

[tyson155]

If my dongle gets caught on something (which never happened to me in decades of diving)... so what? So I would need to adjust and would lose some gas.

My thickly gloved hands prefer some kind of dongle. That being said, my wing came with just a knot - and I often fumble trying to get ahold of the knot - but after several years I haven't added a dongle, even tho every now and then I think about doing so.

Edit - im speaking about kidney dump.

Guilty as charged. They're usele

Now, who removes the rubber mouthpieces from their K-inflators ?

I have used CA glue (super glue) to stiffen the end and knot sections of the pull string.

I guess the other extreme would be to turn it into a second stage ? Not making a case for this, just recalling that it has been produced.

 

[happy-diver]

Thicker string seems nice as long as it slides freely.

No it's one use only sticks open and down you go, forever

But never fear Bob and all his friends are here and they have the means to fashion the holes bigger

 

[tyson155]

Dongle knobs fall into the same categories as suicide clips, carabiners, retractors, consoles, hose protectors, spg boots, BFKs, split fins and other non-cool things.

And bungee wings and backplates that have an elongated hole

 

[Nemrod]

And bungee wings and backplates that have an elongated hole

Oh, the horror!

Seriously, dongles are a minor transgression, I get that cold water folks might like them, do what you need to do to be happy. Though technique is the substitute. They are a minor "personal preference" deviation from Hogarthianism .

 

[JtotheG]

Yikes!

not sure why you are saying yikes ... it works perfectly. I have over 200 dives wit this, I have used it many times - mostly just testing it with no issue at all.

 

[steinbil]

The knot can be a bit troublesome with dry gloves and liners. I agree for bare hands, sure, easy peasy. Thanks.

It's not a problem with dry gloves once you get used to it. The video @JoeTPhilly posted is a good example of the technique. In winter I use 2 layers of wool liners under dry gloves, and it works fine. Admittedly I sometimes miss on the first pull – it's impossible to feel the string or knot with thick liners and dry gloves, but by swiping the index finger around the OPV valve and pinching the fingers most of the time the string will be there, and once you pull you can feel if you're holding it or not, and if you don't simply do another circle with the index finger.

 

[Endler's]

The best OPV I've found was made by Deep Sea Supply.

Tobin made an OPV with a large diameter 3mm Kernmantle Pull Cord.

Sadly, Tobin's company is no longer.

However, Randy @ Piranha Dive, has some inventory left. (I am selfish, and waited until 'received my order of 2 spares before posting this.)

 

[tyson155]

The best OPV I've found was made by Deep Sea Supply.

Tobin made an OPV with a large diameter 3mm Kernmantle Pull Cord.
View attachment 910083
Sadly, Tobin's company is no longer.

However, Randy @ Piranha Dive, has some inventory left. (I am selfish, and waited until 'received my order of 2 spares before posting this.)

I have seen those - they are nice.

 

[JoeTPhilly]

The best OPV I've found was made by Deep Sea Supply.

Tobin made an OPV with a large diameter 3mm Kernmantle Pull Cord.
View attachment 910083
Sadly, Tobin's company is no longer.

However, Randy @ Piranha Dive, has some inventory left. (I am selfish, and waited until 'received my order of 2 spares before posting this.)

Halcyon's new wings and DSMBs come with a 4mm pull cord. Halcyon over pressure relief valve (coarse thread) (4mm cord) OPV for markers and bcd's