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Buoyancy - Scuba Diving & Snorkeling

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What does the law of buoyancy mean


the law of buoyancy is the principle that describes why some objects float over water and some others sink: when you put something in water, it receives an upword force equal to the weight of the water it displaces.
this is important in diving in many ways.. and in particular, in diving, you always want to have a neutral buoyancy: this means that if you are standing still in water and you have a neutral buyoancy, you don't sink nor come back to surface

you have a neutral buoyancy if you "displace" always the correct volume of water.. in other words, you always need to occupy about the same volume: if you go in deep water, the water pressure will "reduce" your volume, so to mantain a neutral buoyancy you have to inflate air in your buoyancy compensator jacket to expand its volume.
otherway, if you're coming back to surface, pressure reduces and your body occupies more volume, so you have to deflate your jacket.

Apr 04, 2017 | Scuba Diving & Snorkeling

1 Answer

Solution for carburetor gas overflow of toyota 3au engine car


Carb float is stuck or maybe has lost its buoyancy and the fuel flow is not being stopped when carb is full. Hence, the overflow.

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1 Answer

I have a bought a second hand mares 1000 mrs bcd and upon receipt have noticed one of the chest/shoulder clips has been stitched on the wrong way round ( back to front). This means that to wear the clip...


You are correct, the buckle will need to be removed and put back on the correct way. Shouldnt cost that much, I had a buckle replaced by a local shop/laundrette that did repairs, was only a few GBP. Hope that helps

Oct 17, 2010 | mares JUBILEE Buoyancy Compensator

1 Answer

Does anyone know how to put together a dite rite classic wing???


go to the dive rite express website and watch the video.

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Dacor/Mares Airtrim


Hi,

Which deflate?? Could just be it needs a service.. Has it had one recently??

Jul 16, 2009 | mares JUBILEE Buoyancy Compensator

1 Answer

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What does a computer driver have to do with Scuba Diving?

Jun 09, 2009 | mares JUBILEE Buoyancy Compensator

1 Answer

Oral inflate tube checkvalve leaking


I believe you can take ge silicone sealant and put some on the end of a toothpick and if you can rebuild the area it will work

It stays plyable and will hold up under water

Jan 05, 2009 | mares JUBILEE Buoyancy Compensator

1 Answer

I have a Dacor airtrim BC. The oral inflate tube checkvalve is leaking. I need a new valve.


it may be dirty. you can unscrew the valve and see if any dirt or sand is keeping it from sealing.

Jan 05, 2009 | mares JUBILEE Buoyancy Compensator

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