Genesis 3.1 Buoyancy Adapters

[Jollymon32]

On my 3.1, I have a dive computer (Sherewater Peregrine) mounted as a console near the back of the nose cone (by the baffle). On the front of the nose cone is where I mount my camera.

Because of the weight and the raised aspect of the two devices and the handle, the DPV tended to roll over when you release it. This in Salt Water.

I have fixed the tendency to roll over by putting external weight pockets on nose cone opposite of the handle and mounted devices. I played with the exact weight (in .25 pound increments) till I achieved the perfect orientation of the DPV, it will no longer want to roll over.

However, it is probably .5 of a pound too heavy, so it is not neutral - I would actually want it to be slightly positive in salt water.

What I am looking for are attachments that will provide just a bit of buoyancy that can be attached to the top of the DPV so as to counter the tendency to roll over and allow me to lower the weights to achieve neutral or positive buoyancy.

Seacraft makes these for their DPV's ( Additional buoyancy foam | Seacraft ). Anyone have any ideas on what to do on a Genesis?

Thanks!

 

[NothingClever]

I bet the guy who designed the Genesis ( @Jon Nellis ) and has collected all the best practices from hundreds of users will have some cogent answers.

 

[missionmtb]

Try to only add weight when absolutely needed (extra weight for trim requires extra buoyancy and is a vicious circle). You may have better results by removing the weights and getting your computer and camera (and their mounts) neutral, individually before adding to your scooter.

Amazon.com

 

[Jollymon32]

Try to only add weight when absolutely needed (extra weight for trim requires extra buoyancy and is a vicious circle). You may have better results by removing the weights and getting your computer and camera (and their mounts) neutral, individually before adding to your scooter.

Amazon.com

Thanks for the link! The dive computer holder is the universal one made by DiveDiversions and it has a round hollow spot where the computer's wrist strap go around, I am going to trim the foam to fit in that area. It may be all I need.

 

[grantmac]

Keep in mind that foam is good for about 40m then rapidly loses buoyancy.
If you don't mind buoyancy changing with depth Marelux has an inflatable bag. Or else you could look at some sort of hard float chamber, possibly a rigid one.

I'm looking at going to external ballast for my older Genesis to allow carrying cameras etc.

 

[Jon Nellis]

A rigid urethane foam in the 15-20lb/cuft range works, but needs to be coated/sealed after shaping.

Easier is to just make some syntactic foam out of glass microballoons & epoxy and mold it onto whatever you need.

3rd option is PVC pipe. Just cut and glue on end caps.


.