DIN O-ring - can't live with it, can't live without it!

[rlynch]

something to consider....

if you use a steel pick to pull the O-rings it can create a nick in the reg at the seal. causing a leak. if using steel, hook the o-ring in the material (o-ring) and fish it out if you cant with your hands. Viton is fine if you need them for deco regs. if not use the normal ones. Its a choice for nitrox
I have no idea about side mount or why you would switch one underwater but sounds like a last ditch option.
(i'm Back mount, etc)

 

[looka]

something to consider....

if you use a steel pick to pull the O-rings it can create a nick in the reg at the seal. causing a leak. if using steel, hook the o-ring in the material (o-ring) and fish it out if you cant with your hands. Viton is fine if you need them for deco regs. if not use the normal ones. Its a choice for nitrox
I have no idea about side mount or why you would switch one underwater but sounds like a last ditch option.
(i'm Back mount, etc)

Regs are not scratched not leaking. I just need to make sure they seal consistently without popping. There is no leak, it either seals perfectly or blows gas like no tomorrow.

In sidemount you would swap regs if one is broke. You don't have a manifold, so if one reg breaks, you loose half of your gas supply, unless you are able to swap regs.

Considering it takes me 5 minutes of cursing on the surface to unscrew my regs from the valve, I am not sure I would be able to do that smoothly underwater.

Put simply, I am pretty sure I am doing something wrong (O-ring maybe) because it really should not be that difficult.

 

[Mr Carcharodon]

You can download the o-ring catalog from Parker Seals which will have the engineering information. Also look at their distributors list and find someone local to you. Or McMaster Carr will mail order.

 

[antattack]

I have an Apeks first stage. Same problem when I use an o ring from a "save a dive" kit. Get a bunch of the correct o rings and dive safely.
cheers!