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| Tek-Talk: Discuss Weighting issues in the Technical and Specialist Diving Forums forums: Having recently acquired a twinset 7ltr @ 300bar, does anyone know the ideal weight/lead/shot I would have to carry in ... |
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| Imported post Having recently acquired a twinset 7ltr @ 300bar, does anyone know the ideal weight/lead/shot I would have to carry in order to offset the gas lost at the end of the dive? I weigh 16.5stone and would dive with a membrane dry suit and thermal under garment. Obviously i have tried weighting in the pool already but it is not indicative of open water use. All i want to know is that i have enough weight to prevent a runaway ascent. can anyone help? |
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| <font color='#0000FF'>YEP you have to play I use 300 bar 12's and you end up starting the dive quite negative just to make sure you are able to stay down on empty tanks. but remember 300 bar cylinders are quite negative in there own right anyway wax
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| Imported post Quote:
On your previous setup, (Was it a single 12?) What was the difference in weight between fresh and salt water. Daz
__________________ Underwater rock juggler extraordinaire Breathe in, breathe out. Repeat as necessary |
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| Imported post 300bar tanks tend to go from very negitave empty to seriously negitave full ATB Mark Chase
__________________ Mark, dispite the fact your a Heron shagging tosser I agree with you , Steve S 10/04/08 ATB as most people will tell you, means Always Talking Boll@cks. My responses to threads should be treated accordingly All The Best Mark Chase Screw the force Luke, use the VR3 |
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| Imported post <font color='#000F22'>I've got 300 bar 7s and with a SS backplate, membrane, weasel I use 3kgs in the sea. I'm over-weighted but I'm still getting used to them. Also it'll do for when i load the extra warm stuff on this winter. 232 12s I use 3kgs or sometimes 2kgs in the sea and no weight in fresh. I use Ali stages and and ali argon bottle. Go for a little dive in shallow water and get out before you get to 80-100 bar. Bleed the tanks down to 30/40 bar and do a buoyancy check.
__________________ Oh, you hate your job? Why didn't you say so? There's a support group for that. It's called EVERYBODY, and they meet in the pub. |
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