Quote: (Originally Posted by
bletso)

That is why I got rid of my stock OPV and replaced it with a very stiff OPV from a BCD. It prevents the CL's from blowing apart at the seams if I should neglect to shut down the O2 bleed. I just vent though my nose.
Since I did that, I have not had any of the previous issues of unexplained water content in the loop.
Dale
L
One of my previous BOB system had BMCL ADV and OPV from BCD he was most of the time "living its own life" during the dive...never seen water in the CL
One of my actual BOB is riged inside a PVC pipe with the lung collapsed by the breathing hoses and mouthpiece pushed inside the pipe and have an OPV with strong spring, it has been many times staged betwween 12 and 45 meters depending on the dive ( and with no more feed gas when let alone )... neither seen water inside either.
My main Rebreather will always stand by me either

and I prefer when its the same for my BOB.
Note about OPV that there is not much water in a SCR system with the OPV firing all the time, so probably the water come in during the shut off phase