Quote: (Originally Posted by
Marc T)
If you get water in the exhale OTS CL its stay in the CL you see and feel it and can dump it.
In the boris the water can obviously too easily come from exhale CL into the Scruber and create caustic cocktail.
Its as dangerous as if the OPV was directly fited in the scrubber.
MK15 is one of my prefered Rebreather ( nether own it and nether will because its a too old and difficult to maintain ) Boris is one of my theorically prefered RB but flooding a loop is one of the greatest prob you can have on a RB, preventin flood is much important to me thank the possibility of recovering the loop.
Was'nt the MK15 OPV in the (unique) inhale counterlung?
I do love it when people who have never owned or dived them tell me how both of my rebreathers work.
Boris = in prone position you would have water coming from the flooded exhale lung down the exhale hose and giving you warning that the lung was flooding before the water level rises enough to enter the scrubber. Scrubber outlet is at the top when prone.
In upright position (who spends much time like that) you would have to fill half the CL to get water in the scrubber. I dont know why (unless your teaching as has happened to one owner, but not thru a opv leak) you would spend that long upright (it would take a while to fill a CL)
I own a MK15.5 I bought a Boris in part because it has far better flood recovery ability. And it does. When my MK15.5 flooded in a cave It was a nasty caustic cocktail and no chance of recovery, when my Boris flooded I had no cocktail and was able to recover it.
To recover a loop you need an OPV. Yes sure Im the first to admit the boris OPV needs work. Focus on the actual problem.
Quote: (Originally Posted by
Marc T)
In the boris the water can obviously too easily come from exhale CL into the Scruber and create caustic cocktail.
Not with the hydrophobic membrane. Some like me have used o-rings to seal them in, some and the factory use silicon, but a sealed membrane will/does stop cocktails.