OC bail out question

Padowan

This is pretty much what I have done. See HERE for my BOV article, and HERE for the discussion thread with some photos of the routing off the inboard/offboard gasses

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pchanning

Thanks Dave,

Could you please explain the ways and means. Which breather is it? Analysis of benefits v's risks leads to many options, all very interesting stuff IMO.

thanks.

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Cheers
Paul

The key to enlightenment... is survival.

dave t

Its an inspiration, seeing as I was the origonal designer of the inspiration It would be rude to dive anything else (yes I know I own a KISS as well)
Ok A hose is connected to the manifold and runs down underneath the inhale counterlung with a male quick connect on the end (couplings were sourced for me by Bob Howel so not sure of the make) the other half (female end) is connected to the first stage of my side slung cylinder. When kitting up I just plug them together so everything that runs off the manifold can be fed by either the onboard dil or offboard dil. if I have a problem with either I just unplug the coupling and they are isolated! The side slung half of the hose will also plug into the counterlung(s) so I can use the gas to run semi-closed or whatever!

Dave

pchanning

LOL... Yeah, I do know which 'Dave T' you are and have followed your various works with interest. (Ah, the stick in PM's I've just got for that...)


Gotcha.


Nice touch.

.

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Cheers
Paul

The key to enlightenment... is survival.

Padowan

Do you use any non-returns in the system or will the inboard and offboard tanks equalise if you open them both? Or does the Male QC have valving in to prevent onboard gas passing to the offboard?

I like your solution, and had though about doing it like that, but was pointed away from that due to it making the manifold a single point of failure for both gas sources. But in retrospect, if the manofold blows an o-ring or something - you just disconnect the QC from the sidemount and use the OC reg you have on the sidemount...?

Simon

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dave t

The quick disconnects are self sealing but I dont use any one way valves. as I use the same gas in the inboard dil as in the offboard it doesnt matter if it equalises but its easy to stop that happening by have different IP's in the first stages

The fact that I can isolate the two tanks does not make it a single point failure

Dave

Edit.. some quick disconnects that are on the market are "one way" (AP I think) but mine arnt!