Quote: (Originally Posted by
Scubascooby)
I think you mean a male connector on the reg and a female on the hose
that is supplying the gas.
I don't think the collar controls the valve and it should be fine as long as there is pressure in the ip hose.
What I have never been able to find out is if the GCS male nipples are also safe to leave exposed underwater. On the AutoAir they always said not to leave it disconnected underwater because water will enter the second stage.
I have always found the AutoAir to be very difficult to connect when it is pressurised, more so than the CEJN fittings. Is the GCS version any easier ?
The GCS is no easier/harder than the autoair, and I agree it's much easier when depressurised, but regular maintenance keeps things acceptable.
I was under the impression that the male part also sealed when disconneced? Although thinking about it, and knowing how the 2 parts mate, if it does close off, it's only by a spring, that can be counteracted by the gas pressure - and if gas pressure can open it, then water pressure could also. Not sure on that.