Independent doubles - hose routing and secondary position?

[ucfdiver]

Assuming you can find rental right & left handed valves. I've rarely seen both valves at dive shops who don't already rent doubles.

 

[aquaregia]

Here's all the extra work you have to do and the extra gear you need to bring along:

Is that a single continuous camband through an STA? Is that a common setup for ID (rather than SS bands, etc) or is it a DIY?

Edit: meant 2x single camband

 

[DaleC]

DIY, 4 cambands. Several on the board here dive similar set ups.
You could use SS bands but then you can't swap out tanks between dives. Depends what you want.

 

[aquaregia]

Hm, with four cambands it isn't really any cheaper than perma-bands, so it's just the convenience factor right? Which I guess could be significant on rental tanks.

I'm not really seeing how the straps across the top are working. Are you just cross-velcroing the extra webbing?

Edit: Hit send too soon. I guess assuming you already owned an STA and two cambands, the other two cambands aren't much at all.

 

[DaleC]

For me there were two down sides to using SS bands.
The first was the fact that being able to swap out my right tank for repetitive dives was a desired capability. The second was that I use a single 32# Apex wing. If I use SS bands the tanks are about 2 1/2 inches wider and compress the wing a bit. As it is, with the tanks side by side I get full inflation. I have said before that I experimented a fair bit with the wing before diving it to make sure the two tanks weren't impeding its inflation/lift capacity.

The extra length of camband webbing can be held together by a piece of bicycle innertube. The velcro doesn't really hold straight to webbing.

Here's a picture of an even simpler set up. The STA's here are two small seperate pieces and because these are St72's I don't need a keel weight. Note the J valves. Both are righties and the left one can only be manipulated with some difficulty. I use these tanks for single tank vintage dives as well, hence the J's.

 

[aquaregia]

Hum, so I could use a 30# singles wing with ID 72s mounted like that? Guess I'd better finish my BP.

 

[Tortuga68]

Thanks Dale, everyone


This is the OMS system I'll be using:

OMS Aluminum Dual Cylinder Travel Band System

 

[DaleC]

Hum, so I could use a 30# singles wing with ID 72s mounted like that? Guess I'd better finish my BP.

I'll say I use a singles wing. YMMV depending on brand, mounting system etc... Make sure you test it very carefully for full, unimpeded inflation before jumping in the water.
Good luck!