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$Now I\'m onto weighting!!$ Now I\'m onto weighting!!

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Other Dive Equipment: Discuss Now I\'m onto weighting!! in the Dive Kit and Equipment forums: Ok - I carry a 7l steel 232 bar cylinder as backup (at present, although I am just about to purchase ...

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19-03-02, 10:56 PM

Jay

Giggety Giggety

Join Date: Nov 2001

Location: Wakefield, West Yorkshire

Posts: 5,040

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Ok - I carry a 7l steel 232 bar cylinder as backup (at present, although I am just about to purchase a 3l pony). My current BCD (Seaquest Pro QD) supplies approx 35lbs (16kgs) in lift. I have calculated that the cylinder creates approx 1.5kg negative buoyancy (salt water) when full and 0.3kg positive buoyancy (salt water) when empty. How should I calculate the amount of lead to shred? I assume I should calculate it assuming the cylinder is empty and cope with the added weight at the start of the dive? I.e. if I usually use 12kg of lead in salt water, should I shed, say, 2kg?

Regards

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