voit 50 fathom

[Robohips77]

I have re-painted several 50 fathoms. If you want to see how it looks check out ebait for one one I repainted a year ago. If interested in more info pm me.

[Chris]

this might be a question people have already asked over and over, but will I ruin anything putting my 50 fathom on my aluminum 80 at 3000psi? Greg's article said the seat would leak air I'm wondering how bad. My 72's got turned into doubles and I don't have any single 72's hydroed yet.

[Robohips77]

I would not do it because of the spring tension in the seat orifice. It will definitely leak and also cause additional wear on the spring. Fill your tanks to 2500 instead of 3000 as a suggestion.

[Chris]

good to know on the spring wear, thank you. I was about to go out to my garage and try it while I still have the can disassembled.

[Chris]

Thanks for all the help everyone. It breathed very nice. I did however notice it sometimes even underwater if I roll over it free flows a bit through the duck bill. Normal?

[captain]

Free flow when on your back is common on any finely tuned double hose regulator. It is the result of the 1st stage diaphragm being in a higher pressure area than your lungs/mouthpiece. You can demonstrate this by holding the mouthpiece with the opening facing down so no water can enter. Slowly raise and lower the mouthpiece in relationship to the regulator can. As the mouthpiece rises above the level of the can it will begin to free flow, as it is lowered below the level of the can it will stop. That is the simple explanation, Luis will probably chime in with a detailed engineering explanation.

[Chris]

I'm talking about swimming on my back under water with the mouth piece still in my mouth it occasionally still over powers and pukes out the exhaust hose. My Phoenix nozzle doesn't do that. I was wondering if that can be tuned down a little by lowering the lever a bit.

[captain]

That it is a downstream valve probably contributes to its sensitivity. Lowering the lever may help but why do it, do you spend that much time swimming on your back. I am willing to tolerate some free flow in that position rather than intentionally degrade performance in all positions.

[simonbeans]

You might also consider when, i.e., at what tank pressure the free flow occurs? Remember the regulator is a one stage DOWN stream design. It will have a tendency to breath a bit easier when the cylinder is at higher pressure than at lower pressure. Think about the DOWN stream air flow. The rest is physics. You know water pressure and position? Basic scuba knowledge acquired in early diving classes. Or maybe the programs today neglect such items as Boyle's, Henry's, Dalton's, Charles's Laws.

[luis]

You might also consider when, i.e., at what tank pressure the free flow occurs? Remember the regulator is a one stage DOWN stream design. It will have a tendency to breath a bit easier when the cylinder is at higher pressure than at lower pressure. Think about the DOWN stream air flow. The rest is physics. You know water pressure and position? Basic scuba knowledge acquired in early diving classes. Or maybe the programs today neglect such items as Boyle's, Henry's, Dalton's, Charles's Laws.

It is great to see you are back from your trip.

BTW, you forgot Archimedes... that one has to do with buoyancy...