Are pull dumps not DIR?

[bwerb]

If you mean...

pulling on the inflator hose to make it dump...nope...not DIR

If you mean the rear pull dump at the bottom of the wing...yup it's DIR.

If you mean the little "ball" at the end of the "pull dump" cord...nope it's not DIR.

The pull-dump cord has a small knot in the end and is easy to find and pull...even with gloves on...you can simply move your palm backwards "cupping" the valve with your fingers spread wide. When you close them, you will have captured the pull cord. A slight twist of the hand and you can vent...easy

 

[pipedope]

On what diving you are doing and how you are rigged as to a pull dump being a good idea or not.

If you embrace the DIR diving system then there is no use for a pull dump. With the rig setup and the diving techniques you never have any time when it would be better or easier to pull on the hose to dump air than lifting the inflator and pushing the button.
Because it is not a better solution the pull dump would be left off.
Pulling on the inflator also increases the risk of pulling the inflator off the end of the hose or the hose off of the fitting on the wing.
On top of that, it is harder to precisely control the amount of air you let out making bouyancy controll harder.

There are times when a pull dump is handy, like when I am working and need to carry tools or instruments and lifting the hose is not easy. But I don't do working dives in DIR gear.

 

[OneBrightGator]

plsdiver4377 once bubbled...
Which manufacturers of wings have a pull dump? I am currently diving a Ranger with a backplate mounted in it, but would like to switch to a harness and would prefer to keep the pull-dump.

Thanks, Jim

Sorry Jim...

I'm pretty sure all the wings except Halcyon have pull dumps on them, I know Dive Rite does. BTW, if you have any questions about making the switch, drop me an PM.

Lemme clarify something, I like that you can't pull the inflator off the corrugated hose with a pull dump, I don't really use the pull dump much. Currently on my DR Classic I have a non-dump elbow on it because the pull-dump was kinda clunky and the elbow fits between doubles better (not to mention the ungodly long corrugated hose), if I could figure out a way to run a wire through the hose I would be happy with it.

Ben

 

[Dryglove]

OneBrightGator once bubbled...

I'm pretty sure all the wings except Halcyon have pull dumps on them, I know Dive Rite does. BTW, if you have any questions about making the switch, drop me an PM.

Neither one of my OMS wings came equipped with pull dumps. Wings are a 55lb and a 45lb nonbungeed single bladder wing.

 

[RichLockyer]

OneBrightGator once bubbled...
corrugated hose), if I could figure out a way to run a wire through the hose I would be happy with it.

Take that old inflator out of the junque drawer and drive the pin out. Measure the hole and find a drill bit to match.

Remove your corrugated hose from the non-pull elbow. Drill a hole all the way through, in an area covered by the hose.

Drive the pin into one hole, thread the wire onto it, and drive it through the other side.

Bingo.

Oh... my Oxycheq has no pull-dump.

 

[OneBrightGator]

RichLockyer once bubbled...

Take that old inflator out of the junque drawer and drive the pin out. Measure the hole and find a drill bit to match.

Remove your corrugated hose from the non-pull elbow. Drill a hole all the way through, in an area covered by the hose.

Drive the pin into one hole, thread the wire onto it, and drive it through the other side.

Bingo.

Oh... my Oxycheq has no pull-dump.

oh, there is death and destruction all over that suggestion...

Don't tell anyone, but I switched the inflator/dump on my Classic and Pioneer, so it's in use (not my use mind you, since someone "removed it from my responsibility" not too long ago) and I'd have to do the same with the inflator which means more death and destruction... maybe if I get ambitious.

Ok... Jim... if you're reading this, Dive Rite definitely comes with a pull dump, Halcyon doesn't, the rest is a cr@p shoot.

Ben

 

[RichLockyer]

OneBrightGator once bubbled...
oh, there is death and destruction all over that suggestion...

Okay, fine.
PM me your address and I'll mail you a scrap of 1/8" stainless wire from my buddy's spring straps that'll be enough to modify several wings.

 

[ElectricZombie]

Inflator pull dumps are not DIR.

I was diving offshore one day when a diver had an uncontrolled ascent well away from the boat. He panicked and yanked on his inflator dump to get back down and do a stop. His inflator came off right in his hand, his BC deflated quickly and he began to sink rapidly. He was way overweighted and now had no inflator plus tight bungees on his wing. His buddy ended up grabbing him before he really got in trouble. He could have easily drown though. This wouldn't have happened if he had dumped air normally instead of using the pull dump.

 

[Don Burke]

OneBrightGator once bubbled... oh, there is death and destruction all over that suggestion...

It looks like the goal is not to put in a pull-dump, but to install the strain relief that the steel cable inside the corrugated hose provides. It would then be pretty much impossible to pull the inflator off the hose.

Actually, that seems like a pretty good idea.

 

[RichLockyer]

Don Burke once bubbled...
Actually, that seems like a pretty good idea.

Except that if my inflator gets snagged on something or I accidentally pull on it and it comes apart, there is one detachment point that I can deal with under water, quickly, and without my buddy.... the inflator pulls out of the hose.

There is one that my buddy can deal with quickly.
The hose pulls off of the elbow.

There is one that my buddy can still deal with, but it may be problematic wearing drygloves... the elbow pops over the threads.

Adding a cable between the two ends eliminates the two failure points that are the easiest to deal with.