OMS bp&w

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kidSalvage

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Location
Detroit, MI
My brother has an OMS bp&w setup. It is a 45lb single bladder w/ bungee straps. He needs to know if it is better to use these straps or take them off.

Chris
 
Have your brother try this:

First, have him blow into the oral inflator to try to inflate the wing all the way full in your living room with the bungee cord on. It might take him a couple breaths.

Next, take the bungee cord off. Now have him try to orally inflate the wing all the way full in your living room without the bungee cord.

Which way was it easier to inflate the wing orally?

Was there any difference in how hard it was to completely inflate the wing with the cord on versus with the cord off?

Should he ever need to inflate the wing orally while diving, he might want to know what this little comparison will show him.

There are a few other issues with the bungee cord, involving trying to deflate the wing with air trapped in little pockets created by the bungee cord, but trying to blow into the wing against the pressure of the bungee cord is IMO one of the biggest issues.
 
Also, look at the profile of a deflated wing without bungees, is it any more resistance in the water? Don't think so. Next, you get a small tear in your wing, do you really want a power deflate? Or do you want a chance to catch it and inflate your drysuit, assuming he's diving one. What's more likely to get entangled on stuff?

What problem are they solving? If you don't need them, why are they there?
 

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