Making rig buoyant?

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The pipe with air in it would be buoyant.....
 
Similar products I have used are not very structural, in other words I would be worried about it collapsing when subjected to the pressure at depth. Try it in a piece of pvc about the same size as your handles and take it to depth to test.



Good luck

Bob
 
I use the Ultralight buoyancy arms. Less hassle to deal with.
DB-BL.jpg
 
Does a hollow pvc pipe with just the volume of air inside have more buoyancy than the foam blocks? I could build a PVC pipe to go along the bottom??


pipe.png


Thanks
 
I don't think you want the added buoyancy on the bottom. Your rig will always be trying to invert itself in the water. Better to put it on top, so the heavier frame "hangs" from the buoyant element.
 
I don't think you want the added buoyancy on the bottom. Your rig will always be trying to invert itself in the water. Better to put it on top, so the heavier frame "hangs" from the buoyant element.

Was wondering about that, thanks!
 
Question,
I have a piece of 2” PVC pipe and a 1-1/2” sewer black pipe, will the black pipe hold up if the ends are sealed to 100’ depths or will it implode?

pipe.jpg
 
https://www.shearwater.com/products/perdix-ai/

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