Weighting: 5 mil to 7 mil

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guyharrisonphoto

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In my full rig, with a five mil suit, I am properly weighted with 12 additional pounds.

How much more would I need to add for a 7 mil? Rough estimate is good. I am going to cold water but won't have the chance to dive the thicker suit until I am there so just want a starting point to fine tune after I arrive.

Thanks!
 

uncfnp

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FWIW I had to add 7 lbs when I went from a used 5 to a brand new 7 mm.
 

tbone1004

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I'm a Fish!
In my full rig, with a five mil suit, I am properly weighted with 12 additional pounds.

How much more would I need to add for a 7 mil? Rough estimate is good. I am going to cold water but won't have the chance to dive the thicker suit until I am there so just want a starting point to fine tune after I arrive.

Thanks!

Depending on size, the rule of thumb is 2-3lbs/mm. I'm the size of a polar bear so mine is a bit over 3 with XXLT wetsuits, but normal people are around 2-3lbs. Put 6lbs on and you should be close enough.
 

JPEG

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I wear 8 lbs in my 5 mil

I wear 16 lbs in my 7 mil

Sorry, I was a bit too sleepy when I posted the above.

This information would be WAY more useful with the details below added:

I am 5’9” and weigh 170 lbs.

Both my wetsuits are one-piece suits in size Medium. Both are Aqualung; 5 mil is a 2019 AquaFlex (I think) and the 7 mil is a ~2016 SolaFlex.
 

inquisit

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Do you have the suits now? If so, you can measure the buoyancy of each in a pool, hot tub, barrel, large trash can, etc. A mesh bag and luggage scale makes this easy.
1. Find enough weight to sink the 7mm
2. Measure the IN-WATER weight of the weight+7mm suit.
3. Measure the IN-WATER weight of the weight+5mm suit.
4. The difference between those two measurements is what you need to add.
 

Dan

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I'm 5' 9", weighing 155 lbs. I use 12 lbs of dive weight with 5mm wetsuit and AL80 tank. If I take a Steel 100 tank, instead of AL80, I use 10 lbs of dive weight. With 7mm wetsuit, I'll add 4 lbs with AL80 tank to a total 16 lbs of dive weight or add 2 lbs with Steel 100 to a total of 14 lbs of dive weight.
 
https://www.shearwater.com/products/perdix-ai/

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