Quote: (Originally Posted by
RAL)
Where is the downside to using a BOV?
I am always a BOV-proponent...
...but just for the sake of discussion, I will throw some out there so we have representations from both sides...
- BOVs are, in general, heavier even in water.
- BOVs have more drag in water.
- BOVs have, in general, higher WOB which could lead to retaining CO2.
- BOVs have more components to fail (i.e. like leaky 2nd stage) that could jeopardize safety (i.e. turn diluent off).
- BOVs could give a fault sense of security, especially when configured incorrectly.
- BOVs could be more dangerous when plumbing to hypoxic gas, and bail-out to it in surface emergencies when panick.