Solenoid stuck open! No Problem With This

A slide valve on the side may not be the greatest thing but I can deal with it quite easily.

It really would not bother me to have 3 or 4 slide valves and 4 knobs in the O2 (lifeline). I am quite capable of turning them on without assistance or mental strain. I monitor my PO2 closely enough that I notice that the O2 is not being injected long before it is any kind of an issue.

Case in point - although this shows my blatent stupidity! I realized that my O2 was not being injected on the back of the boat. Next thing I heard was " Dive Dive Dive" and overboard I went. I figured that I would deal with it during my descent. Even with nasty current, new to a drysuit, and not enough weight, I still managed to monitor my handsets and HUD. I had the tank turned on by 30'. Of Course I had my BO reg in my other hand at the same time.

I realize that this is a matter of personel preference. I am just stating what works for me and why.

Have you seen the http://www.rebreatherworld.com/megal...off-valve.html Rasmus was making?

I have one and it is FANTASTIC!! All metal and very well made.

It's real easy to operate and reduces the STRESS level in the event of a stuck solenoid.

Lance

i would not have one on my o2 line , there have been lots of mishap's
with ccr diver s not turning on there o2 cylinder ,, you would now have two things that must be turned on ,,,

i will stick with using the cylinder valve, or off board 02 ,,,

Duuhh....
I seem to remember doing most of a dive in that mode at the end of mod 1.
I thought that was a standard drill.

Yep, was for me, and I had to do it for real during my course when my KISS orifice started bleeding O2 round the side of it because the O-ring was wrecked.

Not a problem at all

Yep, was for me, and I had to do it for real during my course when my KISS orifice started bleeding O2 round the side of it because the O-ring was wrecked.

Not a problem at all

Its easy for everyone at 20m.

Try doing it at 75m.
With partial pressures, its very hard and dangerous

You must have very difficult and dangerous tank knobs. Ok so if your deep and overhead, and cannot ascend, you might not have the most constant PO2, but so what. I know that at 80m, I can keep it between 1.0 and 1.6 without too much concentration using the tank knobby. And if that doesn't work, flush and SCR (or OC, or manually inject via offboard tank) your way home.

If you can't reach your tank knobs to control them well, re-configure your rig so you can. I fear anyone installing an in line O2 shut-off is increasing (rather than decreasing) their risk.

I think you have to take into acount the different configurations from rebreather to rebreather, the amount of hoses and manifolds and the length of the hoses determines the amount of space that needs to be/ can be filled once you open the tank valve will make a world of difference...