Doubles Hose Routing

[terrasmak]

I might have to try that , ive been setting mine up so the turrent is on the bottem. I'll take pics today of what i run and probably try set it up a little different

 

[Michael Schlink]

Hey Komp, my advice is do what you think you are most comfortable with. Gators explanation is as good as any. SImply put decide if you want to set up DIR, Hogarthian or a mix. My post was simply to show that there was a difference as many think DIR and Hog are the same. You can come up with a reason to do it either way or not to for that matter. Because of the people a dive with, I go Hog.

 

[KOMPRESSOR]

Hogarthian doesn't really have much to do with what DIR does or doesn't do, it's based on a principal created (or made popular, whatever) by a cave diver by the name of William Hogarth Main. The drysuit-right, inflator-left is the way he routes his hoses, so...

If we're going to nit-pick, I'd rather turn off the post I'm not breathing off of, even if that means dumping with my right hand and closing the valve with my left hand, but honestly, if you're diving doubles you should be comfortable either way.

For me, cave diving, I would rather find a rolled off left post through my inflator (I dive wet mostly, so no drysuit indicator), then my backup reg as I try to breathe off of it while I'm handing my primary over to my out-of-air buddy, but in reality you should find a rolloff by checking your valves after going through anything that might have turned them off, so who knows?

Learning new stuff every day! Ain't it great?!

I'm not willing to dive in a cave, so I'm comfy with my set up as it is now. -And I'm pretty proud to say I thought it through and mounted it like it is without even looking at the "DIR" pictures! -And came to the same result, actually. Not bad after 15 minutes with a wrench and a cup of coffee in the basement, is it?!

 

[Diver0001]

And how would you then go about it if you have an uncontrolled blow-up of your wing and need to dump air AND turn off the connected post at the same time, when they are on the same side?

Unclip it first.

I've never seen the "Hogarthian" hose routing mentioned above and this is the first I can remember hearing of a distinction between DIR and Hogarthian on this point.

Everyone I know uses exactly the same routing shown above and none of us would say that we're DIR.

R..

 

[lostplanetairman]

Thanx for the responses , I've been gone all weekend diving. Forty degree (F) water in a quarry and today in the pool with students. I liked Tamas's pix, thats how I routed mine except I ran #5 over #1. It took me a bit of searching to find the reason for the position of the 1st stages that allow access to the cyclinder knobs.

 

[alexxred]

"If we're going to nit-pick, I'd rather turn off the post I'm not breathing off of, even if that means dumping with my right hand and closing the valve with my left hand, but honestly, if you're diving doubles you should be comfortable either way"

Just wondering if the dump valve is on the L how you would get at it while wearing twins with your R right hand? Will have to check tonight but I thought reaching it like this would be really hard.

 

[KOMPRESSOR]

"If we're going to nit-pick, I'd rather turn off the post I'm not breathing off of, even if that means dumping with my right hand and closing the valve with my left hand, but honestly, if you're diving doubles you should be comfortable either way"

Just wondering if the dump valve is on the L how you would get at it while wearing twins with your R right hand? Will have to check tonight but I thought reaching it like this would be really hard.

It's impossible to reach your left post with your right hand. My thoughts are that you'll be at the surface before have been able to turn off your left post and empty your wing also. And as you rise in the water you'll probably have a third task as well at emptying your drysuit.

It makes sense to have the wing connected to the right post since the dump valve is on the left side. I don't dive caves, but I can't see a good reason for this not applying in a cave as well. If you hit the roof with your rig you WILL check your valves no matter what, won't you?

 

[KOMPRESSOR]

Unclip it first.

Not a good plan in my waters. I dove in 4 Celsius yesterday (surface water temp was 2 Celsius), and my fingers were so numb I wouldn't have been able to unclip the LP hose from the inflator without a lot of hassle. Besides, as you are ocupied with this (using both hands), you still have a filled wing that will drag you up, resulting in even more air you have to dump as you rise.

I've never seen the "Hogarthian" hose routing mentioned above and this is the first I can remember hearing of a distinction between DIR and Hogarthian on this point.

Everyone I know uses exactly the same routing shown above and none of us would say that we're DIR.

R..

I can only say the same, but I don't live in a cave diving environment

 

[Diver0001]

Not a good plan in my waters. I dove in 4 Celsius yesterday (surface water temp was 2 Celsius), and my fingers were so numb I wouldn't have been able to unclip the LP hose from the inflator without a lot of hassle. Besides, as you are ocupied with this (using both hands), you still have a filled wing that will drag you up, resulting in even more air you have to dump as you rise.

You won't rise, mate. The technique is to hold the inflator up and vent it while you're unclipping. If your hands are numb you might have trouble closing your valves too.... what you might consider using on your inflator is the kind of inflator coupling you see on a drysuit. They're generally bigger and easier to grasp, even with cold hands.

The point is a little moot though, since we seem to agree that the inflator needs to be attached on the right.

R..

 

[KOMPRESSOR]

You won't rise, mate. The technique is to hold the inflator up and vent it while you're unclipping. If your hands are numb you might have trouble closing your valves too.... what you might consider using on your inflator is the kind of inflator coupling you see on a drysuit. They're generally bigger and easier to grasp, even with cold hands.

The point is a little moot though, since we seem to agree that the inflator needs to be attached on the right.

R..

Well, the wing don't ventilate it self. It needs help from you, and that takes up your left hand. I can't see how it should be very easy to unclip the LP from the inflator with just one hand, the right hand. It is much easier to turn off a knob on a post with numb fingers in cold (COLD!) water than it is to unclip the LP hose. NUMB fingers and THICK gloves together is a challenge! And it takes time. You don't have a lot of time to do this, so head down - dump with your left hand and turn off your right post with your right hand is the way to go. Then you switch to your back up, and THEN you may unclip the LP from the inflator peacefully and start figuring where to go from there.

I have the bigger coupling on my dry suit hose. It's a different connection than the one on the inflator and they don't match. One could easily rebuild it to connect, but the bigger ones are to wide to go on the inflator anyway, and they unclip rather too easy. I feel more like getting the slim coupling on my drysuit instead, so I don't have to stock two different types of LP hoses in my travel box.