Which tank connects to ADV?

GoProHonduras · 10th January 2006, 03:14

Hi,

During my Inspiration course I never had an ADV valve fitted on my unit, so didn´t cover any routing regarding this.

I now have fitted an ADV on my Inspiration and am wondering when I am diving Normoxic Trimix which tank is best to connect the ADV hose to, my 3 litre onboard tank or the 11 litre tank of bail out/back up mix that I carry?

Any pro's or cons to either method?

At the moment I'm routing to my onboard tank as there is enough gas for dive requirements and I don't have to mess about with the stage tank if I need to ditch it or pass over to another diver.

Look forward to hearing how other divers do this?

Warm regards,
Andy

ROB DAVIE · 10th January 2006, 03:34

Andy,

Initially and normally it will be plumbed into the on-board diluent tank. It is just a substitute for your finger on the button. Tom Mount goes so far as to put a trombone-valve on it, use it to the bottom, and then shut it off.

GoProHonduras · 10th January 2006, 11:35

Quote: (Originally Posted by ROB DAVIE)

Andy,

Initially and normally it will be plumbed into the on-board diluent tank. It is just a substitute for your finger on the button. Tom Mount goes so far as to put a trombone-valve on it, use it to the bottom, and then shut it off.

Thanks Rob,

What's a Trombone valve?

Regards,
Andy

decoweenie · 10th January 2006, 12:03

Quote: (Originally Posted by GoProHonduras)

What's a Trombone valve?

I believe Rob was referring to the shut-off valve sold by APV (for example) to isolate feeding diluent gas to the ADV.

It is a common practive to shut-off the ADV once reached bottom so any temporary "funny" position on your trim (i.e. tilt upside down to peer under a piece of wreckage) won't activate the ADV and added unnecessary gas.

Doing so while you dive MLV, then you won't have to adjust the lung volume as often if you tend to break off the perfectly-horizontal position often.

ROB DAVIE · 10th January 2006, 12:56

What he said!

Phi is right. The reference is actually a description of the way the valve looks and works. It is barrel-shaped, or tubular, and the on-off control slides back and forth.

I don't know off-hand where APD get their units, but M&J make a beautiful version.

Here: www.oxycheq.com

***Beanie*** · 10th January 2006, 12:59

Quote: (Originally Posted by ROB DAVIE)

What he said!

Phi is right. The reference is actually a description of the way the valve looks and works. It is barrel-shaped, or tubular, and the on-off control slides back and forth.

I don't know off-hand where APD get their units, but M&J make a beautiful version.

Here:

APD make their own.

**RichClark** · 10th January 2006, 13:05

But they're not as nice as the M&J ones.

I spoke to Patrick yesterday, and he has some in stock right now.

Cheers

Rich

decoweenie · 10th January 2006, 13:06

AFAIK, there are at least 3 sources of these valves:

M&J
APV
Apeks

Of these 3, the APV version is the slimmest. And the other two look/feel very similar, except I have not opened up the M&J valve to see if it is identical to Apeks or not.

***Beanie*** · 10th January 2006, 13:10

Quote: (Originally Posted by decoweenie)

AFAIK, there are at least 3 sources of these valves:

M&J
APV
Apeks

Of these 3, the APV version is the slimmest. And the other two look/feel very similar, except I have not opened up the M&J valve to see if it is identical to Apeks or not.

The Apeks one is really to fat to put on hte APD ADV it interferes with the ADV body and forces the connection out stressing it.

***ScubaDadMiami*** · 10th January 2006, 14:40

Dive Rite also carries them. Not sure if they are made by Farallon or Dive Rite.

10th January 2006, 03:14	#1 (permalink)
GoProHonduras Down in Honduras Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jun 2005 Location: Utila, Bay Islands Posts: 19	Which tank connects to ADV? Hi, During my Inspiration course I never had an ADV valve fitted on my unit, so didn´t cover any routing regarding this. I now have fitted an ADV on my Inspiration and am wondering when I am diving Normoxic Trimix which tank is best to connect the ADV hose to, my 3 litre onboard tank or the 11 litre tank of bail out/back up mix that I carry? Any pro's or cons to either method? At the moment I'm routing to my onboard tank as there is enough gas for dive requirements and I don't have to mess about with the stage tank if I need to ditch it or pass over to another diver. Look forward to hearing how other divers do this? Warm regards, Andy
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10th January 2006, 03:34	#2 (permalink)
ROB DAVIE Administrator Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Feb 2005 Location: HOUSTON, REPUBLIC OF TEJAS Posts: 1,120	Re: Which tank connects to ADV? Andy, Initially and normally it will be plumbed into the on-board diluent tank. It is just a substitute for your finger on the button. Tom Mount goes so far as to put a trombone-valve on it, use it to the bottom, and then shut it off. __________________ [SIZE=2]"CC Rebreathers will become a viable part of tech diving [U]WHEN PIGS FLY[/U]!!"--GI3[/SIZE]
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10th January 2006, 11:35	#3 (permalink)
GoProHonduras Down in Honduras Current Rebreather/s: Inspiration Classic Other Rebreather/s: Join Date: Jun 2005 Location: Utila, Bay Islands Posts: 19	Re: Which tank connects to ADV? Quote: (Originally Posted by ROB DAVIE) Andy, Initially and normally it will be plumbed into the on-board diluent tank. It is just a substitute for your finger on the button. Tom Mount goes so far as to put a trombone-valve on it, use it to the bottom, and then shut it off. Thanks Rob, What's a Trombone valve? Regards, Andy
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10th January 2006, 12:03	#4 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Which tank connects to ADV? Quote: (Originally Posted by GoProHonduras) What's a Trombone valve? I believe Rob was referring to the shut-off valve sold by APV (for example) to isolate feeding diluent gas to the ADV. It is a common practive to shut-off the ADV once reached bottom so any temporary "funny" position on your trim (i.e. tilt upside down to peer under a piece of wreckage) won't activate the ADV and added unnecessary gas. Doing so while you dive MLV, then you won't have to adjust the lung volume as often if you tend to break off the perfectly-horizontal position often. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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10th January 2006, 12:59	#6 (permalink)
*Beanie* Close to that red button Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,207	Re: Which tank connects to ADV? Quote: (Originally Posted by ROB DAVIE) What he said! Phi is right. The reference is actually a description of the way the valve looks and works. It is barrel-shaped, or tubular, and the on-off control slides back and forth. I don't know off-hand where APD get their units, but M&J make a beautiful version. Here: APD make their own. __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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10th January 2006, 13:05	#7 (permalink)
RichClark Classic KISS No. 226 Current Rebreather/s: Classic Kiss Other Rebreather/s: Join Date: Mar 2005 Location: Hove, UK Posts: 772	Re: Which tank connects to ADV? But they're not as nice as the M&J ones. I spoke to Patrick yesterday, and he has some in stock right now. Cheers Rich __________________ The more I learn about women, the more I want to go diving... just don't tell my wife I said that To taste something a little different, try http://www.thechillikitchen.co.uk
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10th January 2006, 13:06	#8 (permalink)
decoweenie Crash Test Dummy Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: Feb 2005 Location: Cairo Posts: 5,510	Re: Which tank connects to ADV? AFAIK, there are at least 3 sources of these valves: M&J APV Apeks Of these 3, the APV version is the slimmest. And the other two look/feel very similar, except I have not opened up the M&J valve to see if it is identical to Apeks or not. __________________ "...after a while you get bored offering advice to a bull that like to keep butting the fence with its head rather than walking through the open gate..." - Rebreather World PM
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10th January 2006, 13:10	#9 (permalink)
*Beanie* Close to that red button Current Rebreather/s: Inspiration Classic Other Rebreather/s: Inspiration Vision Join Date: Jan 2005 Location: In da house! yeah baby! Posts: 3,207	Re: Which tank connects to ADV? Quote: (Originally Posted by decoweenie) AFAIK, there are at least 3 sources of these valves: M&J APV Apeks Of these 3, the APV version is the slimmest. And the other two look/feel very similar, except I have not opened up the M&J valve to see if it is identical to Apeks or not. The Apeks one is really to fat to put on hte APD ADV it interferes with the ADV body and forces the connection out stressing it. __________________ Beanie Gallery Admin & Library Assistant. www.outlawdivers.org.uk www.beandiving.co.uk www.beanengineering.co.uk www.divelife.co.uk
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10th January 2006, 14:40	#10 (permalink)
*ScubaDadMiami* Moderator Current Rebreather/s: Optima Other Rebreather/s: Join Date: Sep 2005 Location: Florida, USA Posts: 2,075	Re: Which tank connects to ADV? Dive Rite also carries them. Not sure if they are made by Farallon or Dive Rite. __________________ Howard Packer IANTD CCR Instructor Miami Beach, Florida CCRDiveTraining.com
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