60plus
Contributor
Anyone have a rough idea how much extra weight I would need to put on if switching from a 3/2mm wetsuit to a 7mm wetsuit?
1) In freshwater
2) In seawater
1) In freshwater
2) In seawater
Wetsuit buoyancy
- Thread starter 60plus
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Scared Silly
Contributor
Really hard to answer your question as there are too many factors starting with the suit size.
Buoyancy, Balanced Rigs, Failures and Ditching – a comprehensive tool
For an average sized guy, there's about 6.5kg difference in buoyancy between two similar type neoprene suits of those two thicknesses.
For an average sized guy, there's about 6.5kg difference in buoyancy between two similar type neoprene suits of those two thicknesses.
Put the suit in a mesh bag......add weights until it sinks......
CT-Rich
Contributor
The mesh bag probably won’t work great. Two many factors involved, You height, weight, tank type type of setup.... empirically testing it is usually best. If you are already trimmed out well in your old suit, you can probably make reasonable guess. For a surprisingly good guess, Dive Buddies has a pretty decent calculator. It was only off by a couple of pound on my summer rig.
DiveBuddy
DiveBuddy
If I may.....
Yes, the bag method works better to determine the actual buoyancy better than any “estimate”. To determine overall buoyancy there are more factors. As the OP already has his “constants” he just needs to know the difference in his suits. The conversion from salt to fresh is easy, +/- 4 lbs (estimated) lol.
Yes, the bag method works better to determine the actual buoyancy better than any “estimate”. To determine overall buoyancy there are more factors. As the OP already has his “constants” he just needs to know the difference in his suits. The conversion from salt to fresh is easy, +/- 4 lbs (estimated) lol.
EireDiver606
Contributor
Depends what your body composition is like, if you’re nervous as you hold more air in lungs, etc.
Go diving. When you resurface at the end of the dive, presuming you have 40 bar in your tanks, you want to empty your wing completely (go inverted), then if you sink too quickly, take off some lead, if you can’t go Dow, add lead. This is a weight check, not directly answering your q. @tbone1004 is an expert on this, he could explain better than me.
Go diving. When you resurface at the end of the dive, presuming you have 40 bar in your tanks, you want to empty your wing completely (go inverted), then if you sink too quickly, take off some lead, if you can’t go Dow, add lead. This is a weight check, not directly answering your q. @tbone1004 is an expert on this, he could explain better than me.
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