[Drmike]

Hi Guys

I tried to avoid this issue in 2 ways

1) crank up the OPV opening pressure way above the IP of my offboard but still well below burst pressure of boris hoses

2) I dont plub my off board into boris instead I plub it into the 2nd stage on my FFM so I add offboard dil by nose breathing

[Drmike]

Quote: (Originally Posted by DrJM)

Hey Frankie

thanks for reassuring me

I see your points and appreciate them, but I don't mind losing the 2 lit on board gas BUT losing a lot of offboard gas really anoy me(mainly if deep yoyo profile), so maybe a possible solution will be to install a one way valve on the exit pipe of the inboard 1st stage dil, so like that even if the opv is stuck open I'll not loose my offboard dil gas ... food for thought

Jerome

I thought about this but that means you wont be able to run your ADV from offboard gas (not that that is a major loss)

I like the fact my offboard and onboard are totally seperate independant supplies with no commonality at all. But this only works if you use a BOV or as in my cae the FFM side reg

[CCR900]

Thanks.

OPV looks the culprit, it just took a long vinager bath and I am getting a tiny leak (IP set at 10.5bar from a recent service), will just get another OPV. I haven't had a chance to check my off board reg yet.

Whilst I understand the need to have a cracking pressure of the OPV on the O2 clean side close to IP but on the dil side I fancy pushing it way up, as Mike suggested.

Still do not understand why depth triggers the flow and why I can't recreate the problem at home though....

F