Doubles

[cool_hardware52]

Actually you can take a bottle of O2 and bottle of Air, and mix it on the fly.....the manifold used is made out of rubber hoses and breathing bags

Need a few other things, like a scrubber, and a PPO2 monitor.......

Now you have a CCR



Tobin

 

[Florabama]

I just re-read this post and realized that the writer does not understand how a doubles manifold works. The valves at each end of the manifold are referred to as post valves; the valve in between is called the isolator valve. Each post valve controles gas flow to the regulator mounted on it only. The isolator valve controls flow of gas from one valve and regulator and the other. If you close a post valve you close off the gas to the regulator mounted on that post, but gas from the tank on that side will still flow through an open isolator valve to the other side. If you put different gasses in each tank (which I have already stated would be ill advised) the only way to keep them seperated is to keep the isolator valve closed.

I've never dove doubles, but have always been curious about how they work.
That was a great description and very informative, thanks.

 

[Randy43068]

My Apologies...It started with a silly answer to a stupid question...and then took on a new life from there.

Who says you DIR guys don't have a sense of humor?