Sidemount with back mounted deco gas?
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JamesK
Contributor
Because there is absolutely no point in it. What is the purpose of it? What would it solve? I can only think of problems this could cause. For the life of me I can not think of 1 advantage.
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Karl_H
Contributor
What James K said!
Sidemount can give advantages when it comes to streamlining, easing weight on the knees/back and passing smaller restrictions, otherwise back mounted doubles is a more solid configuration for most applications.
To be blunt, using sidemount backgas with back mounted deco gas just seems like a stupid idea to try and be different. It takes away almost all the beneifets of sidemount, I can only hope you are thinking single deco gas dives here so I assume the gas volume is negligible - so why put that on your back? If it's multiple gas deco dives you are talking about and you can't see a problem with putting these on your back I would seriously worry.
Have you considered using the deco gases side slung with the bottom gas on your back?
Sidemount can give advantages when it comes to streamlining, easing weight on the knees/back and passing smaller restrictions, otherwise back mounted doubles is a more solid configuration for most applications.
To be blunt, using sidemount backgas with back mounted deco gas just seems like a stupid idea to try and be different. It takes away almost all the beneifets of sidemount, I can only hope you are thinking single deco gas dives here so I assume the gas volume is negligible - so why put that on your back? If it's multiple gas deco dives you are talking about and you can't see a problem with putting these on your back I would seriously worry.
Have you considered using the deco gases side slung with the bottom gas on your back?
JamesK
Contributor
1. You still have your side mounted tanks on your side.
2. Just hand your deco bottles up to the boat or hook them to a drop line.
I seriously think you are just trolling. You can not seriously think this is a good idea.
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DevonDiver
N/A
If you're gonna back-mount, then that's the place for your bottom gas. Deco gas has to remain in a location where the physical cylinder markings can be confirmed as part of a standardized gas-switch procedure. I've never met a diver with sufficient neck mobility to permit that with back-mounted deco cylinders.
Pay heed to gas-switch protocols... they keep you alive.
Pay heed to gas-switch protocols... they keep you alive.
OK, OK... own up. What have you been smoking.
This is an inane idea and your reasoning (not stacking bottles, and easier to get onto the boat) suggests you have not spoken to a SM instructor... or someone who actually has some background in SM... and/or that your deco bottle is not configured as it should be.
And the warnings already voiced should be reason enough NOT to attempt this. Deco gas is the most likely to freeflow (at least in my limited experience) so why put the controls where they are hidden and inaccessible?
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