Question Dive Rite wing pull dump

[youllfloattoo]

You want it to need a good long firm pull to prevent inadvertent actuation.

Getting in the habit of dumping from the inflator or the kidney OPV is probably better as those techniques apply across most wings. Shoulder pull dumps are a minority configuration.

Pulling on my inflation assembly at depth to manage buoyancy sounds really sub-optimal. I like being in trim and that pools my air away from my shoulders. My left kidney OPV gives me more precise control without having to disturb my trim. I’m a proponent of plain elbows.

That is great and you are probably right. What I am asking is a design question. Why does Dive Rite take 3 inch's but say an Scubapro is barely a quarter inch. What is so special about their design?

 

[youllfloattoo]

Becuase you don’t want it accidentally dumping every time you touch the inflator.

Though I would think that would be the tension spring not the length of the cable. That is what I am asking why 3 inches when other brands are barely are a quarter inch. Dive rite said there was some limitation. trying to understand that limitation.

 

[johndiver999]

scuba pro uses a different hose. If you are operating the dive rite as intended, just use it. If you want to mess with it, cut the cable shorter, buy some good crimps and make a new loop at the end. `

 

[youllfloattoo]

scuba pro uses a different hose. If you are operating the dive rite as intended, just use it. If you want to mess with it, cut the cable shorter, buy some good crimps and make a new loop at the end. `

That can't be done. Per Dive Rite it's some sort of limitation. That is why I am asking for a smart person to explain it.

 

[happy-diver]

I need to look at stuff to understand it, got any replacement cable ties mate, pull it apart and look at it

 

[The Chairman]

Toss it, and replace it with a regular hose.

Please don't toss it, unless you want a shorter hose.

Make your own! The line that pulls the dump valve can be replaced to fit your needs. I use 1mm mono, some double barrel crimps to fit, and a good crimper. In fact, I use this to attach SS Snap Clips to various things I carry on my dive, like lights and whatever. I use mono because it can't rust, has a 100# capacity, and I can easily cut any gear away if needed. The last part doesn't apply to the line in your hose.

Caveat, the first ones I made too short, and it was too easy to vent air. I make it about an inch of play. You do have to remove the hose from the inflator valve and the BC snorkle to do this.

Caveat #2. I really like pull dumps on 12" hoses. No one sells that arrangement, so I bought short hoses and replaced the stupidly long ones and retained my pull dump.

 

[The Chairman]

Correction, for my pull dumps, I actually use 1.8mm mono (400# test) and the correct double barrel crimps. They don't seem to stretch as much as the 1mm. I currently have 1, 1.4, and 1.8mm mono leader in my drawer. I use them throughout my shop for various projects and it's amazing how many problems I've solved. It's often better than duct tape for many repairs, especially if something needs to be tethered. Nothing I've tethered has become brittle, which I worried about. The 1mm is quite flexible and still plenty strong.

 

[johndiver999]

Yes and the mono is way better than the stupid thin steel cable that is covered with a plastic jacket, these things always break where the crimp cuts through the jacket and accelerates the corrosion. 400 lb mono will last forever. - as will weed wacker line which some people may have easier access to.

 

[The Chairman]

as will weed wacker line which some people may have easier access to.

Just get the right double barrel crimps for the size. I think a 100yds cost me $15 or $20 and has lasted for years. I bought it at least 10 years ago. The time involved is incredibly minimal too. Maybe 5 minutes or so. Again, I use it for all sorts of projects, Scuba and non-Scuba.

 

[happy-diver]

Fairdinkum 25yrs ago I got metres and metres and metres of shark leader
stopped using that rusty plastic wire stuff, and got metres and metres left