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Old 24th November 2007, 15:12   #12 (permalink)
Mark Chase
I go down for ages
 
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Current Rebreather/s:
Classic Kiss

Other Rebreather/s:
Inspiration Classic
 
Join Date: Jan 2005
Location: Kent
Posts: 2,557
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Re: To BOV or not BOV - Split From NACD Cave Summit

To me a BOV is a must have piece of kit. The more i read about people having C02 hits the more i realize the chances of going OC after a hit are slim without it.

My BOV was plumbed into inboard 3ltr which i try to keep at 230+ bar and was designed as immediate bailout with a switch after a half dozen breaths on to large off board tanks.

Following debate with Dr Mike and a re think i decided to go fully off board with my bailout so no its connected to a 10ltr blown to 250bar on any dive below 60 and a 7ltr on any dive up to 60m.


90% of my diving allowed me to run a surface breathable gas for bailout. 16% will do me down to 80 ish m and its breathable on the surface.

If i go past 80 i need another deep bailout which may be hypoxic on the surface, So i use a gas connect system. I jump in with bottom mix plumbed in as I rightly or wrongly believe nothing much is likely to happen in the first 5mins and with my wing i can head far enough out of the water to spit the loop.

However on ascent i will be spending considerable time in the shallows so I will disconnect my BOV feed and reconnect to 50% at 21m

In oder to ID the tanks the BOV feed is on a 2m hose and the tanks have 6" whips on them. So ID the tank and connect feed.

If tanks need to be handed off then I can reconnect the BOV to inboard (needs assistance to do easily but can be done solo.) Or i can connect to an alternative mix.

All off boards have their own OC regs attached.


I have sat and thought about it and had lots of experimental goes at configs but this is the one i like the best so far.

ATB

Mark
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Is it supposed to make that noise ?

I took my unit to the dive shop and demanded they bolt on every thing that would fit.

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