Counterlung Interface

Crazyduck · 6th October 2006, 16:12

I am hoping that someone has practical experience with this.

It has been stated by a few people that they had problems sealing the counterlungs after adding connections- basically elbows or breathing hoses.

I am curious what people have used to seals the connections with the counterlung?
Gaskets, glues, p-ports, bulkhead fittings…

Thanks, Andrew

**Dave Sutton** · 6th October 2006, 22:53

Quote: (Originally Posted by Crazyduck)

I am hoping that someone has practical experience with this.

It has been stated by a few people that they had problems sealing the counterlungs after adding connections- basically elbows or breathing hoses.

I am curious what people have used to seals the connections with the counterlung?
Gaskets, glues, p-ports, bulkhead fittings…

Thanks, Andrew

I've used P Ports with GREAT success, and have made straight plug-ins, used Ray elbows, and have made plug-in Tees for dual hoses (think OTS counterlung fabrication). They work great. Use a dab of Aquaseal (there's another name for this stuff in Europe, someone fill it in please?) and they stay sealed to the lung perfectly. Not sure why anyone would use anything else.

Dave

tobias1234 · 6th October 2006, 23:55

AFAIK: US = Aquaseal and EU = Aquasure

**Dave Sutton** · 7th October 2006, 00:08

Quote: (Originally Posted by tobias1234)

AFAIK: US = Aquaseal and EU = Aquasure

Yes, exactly....

Dave

Crazyduck · 9th October 2006, 16:46

Dave,
Sir, have you had any problems with leaks or water egress into the system through the p-ports?

A few friends have commented that they have had problems with p-ports sealing and concerns since it is single o-ring verse double o-rings on other models.

Are you using the aquaseal to make the connections perminate or can you peel it off without destroying the o-ring ?

Thanks, Andrew

Jeff_B · 9th October 2006, 17:59

Quote: (Originally Posted by Crazyduck)

I am hoping that someone has practical experience with this.

It has been stated by a few people that they had problems sealing the counterlungs after adding connections- basically elbows or breathing hoses.

I am curious what people have used to seals the connections with the counterlung?
Gaskets, glues, p-ports, bulkhead fittings…

Thanks, Andrew

I've got a p-port on my classic kiss (into the inhale counter lung to link up with a vr3) and I have been suprised how reliable its been. When I fitted it I had concerns over its long term reliablity (1 O ring ect), but 130 odd dives later no leaks (touch wood!).
The only thing I did do was use a thin bit of neophrene on the inside of the lung to help with the seal, and then just made sure the connector stayed tight over the first few dives. As this worked so well I found no need to aquasure it in place.

Jeff

**Dave Sutton** · 9th October 2006, 18:33

Quote: (Originally Posted by Crazyduck)

Dave,
Sir, have you had any problems with leaks or water egress into the system through the p-ports?

A few friends have commented that they have had problems with p-ports sealing and concerns since it is single o-ring verse double o-rings on other models.

Are you using the aquaseal to make the connections perminate or can you peel it off without destroying the o-ring ?

Thanks, Andrew

I've *never* had a leak. The Aquaseal is used on the outside of the bag, and acts to do two things: (1) it obviously seals the system, but just as importantly it (2) acts as a sliding-lubricant to allow the fitting to be tightened REALLY tight without tending to twist the counnterlung as it is threaded onto the backing nut. Just a dab on the flange of the fitting where it contacts the outer surface of the bag is perfect. It peels off no worries in case of the desire to remove the connector.

Dave

Crazyduck · 9th October 2006, 20:06

Jeff and Dave-
Thanks gentleman I appricate it.

Thanks, Andrew

6th October 2006, 16:12	#1 (permalink)
Crazyduck Underwater Mechanic Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Mar 2005 Location: TEXAS, Dallas/ Ft.Worth Posts: 720	Counterlung Interface I am hoping that someone has practical experience with this. It has been stated by a few people that they had problems sealing the counterlungs after adding connections- basically elbows or breathing hoses. I am curious what people have used to seals the connections with the counterlung? Gaskets, glues, p-ports, bulkhead fittings… Thanks, Andrew __________________ Howdy Senor- What’s Happening! Rob Davie April 2005- Presently in a state of transition from Open Circuit to Closed Circuit. "You will not be punished for your anger; you will be punished by it." - Buddha.
(Online)

6th October 2006, 22:53	#2 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Evolution Megalodon rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,907	Re: Counterlung Interface Quote: (Originally Posted by Crazyduck) I am hoping that someone has practical experience with this. It has been stated by a few people that they had problems sealing the counterlungs after adding connections- basically elbows or breathing hoses. I am curious what people have used to seals the connections with the counterlung? Gaskets, glues, p-ports, bulkhead fittings… Thanks, Andrew I've used P Ports with GREAT success, and have made straight plug-ins, used Ray elbows, and have made plug-in Tees for dual hoses (think OTS counterlung fabrication). They work great. Use a dab of Aquaseal (there's another name for this stuff in Europe, someone fill it in please?) and they stay sealed to the lung perfectly. Not sure why anyone would use anything else. Dave __________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com
(Offline)

7th October 2006, 00:08	#4 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Evolution Megalodon rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,907	Re: Counterlung Interface Quote: (Originally Posted by tobias1234) AFAIK: US = Aquaseal and EU = Aquasure Yes, exactly.... Dave __________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com
(Offline)

9th October 2006, 16:46	#5 (permalink)
Crazyduck Underwater Mechanic Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Mar 2005 Location: TEXAS, Dallas/ Ft.Worth Posts: 720	Re: Counterlung Interface Dave, Sir, have you had any problems with leaks or water egress into the system through the p-ports? A few friends have commented that they have had problems with p-ports sealing and concerns since it is single o-ring verse double o-rings on other models. Are you using the aquaseal to make the connections perminate or can you peel it off without destroying the o-ring ? Thanks, Andrew __________________ Howdy Senor- What’s Happening! Rob Davie April 2005- Presently in a state of transition from Open Circuit to Closed Circuit. "You will not be punished for your anger; you will be punished by it." - Buddha. Last edited by Crazyduck : 9th October 2006 at 16:49.
(Online)

9th October 2006, 17:59	#6 (permalink)
Jeff_B New Member Current Rebreather/s: Sport Kiss Classic Kiss Other Rebreather/s: Join Date: Sep 2006 Location: Chelmsford Posts: 43	Re: Counterlung Interface Quote: (Originally Posted by Crazyduck) I am hoping that someone has practical experience with this. It has been stated by a few people that they had problems sealing the counterlungs after adding connections- basically elbows or breathing hoses. I am curious what people have used to seals the connections with the counterlung? Gaskets, glues, p-ports, bulkhead fittings… Thanks, Andrew I've got a p-port on my classic kiss (into the inhale counter lung to link up with a vr3) and I have been suprised how reliable its been. When I fitted it I had concerns over its long term reliablity (1 O ring ect), but 130 odd dives later no leaks (touch wood!). The only thing I did do was use a thin bit of neophrene on the inside of the lung to help with the seal, and then just made sure the connector stayed tight over the first few dives. As this worked so well I found no need to aquasure it in place. Jeff
(Offline)

9th October 2006, 18:33	#7 (permalink)
Dave Sutton Diveshop of Horrors Current Rebreather/s: Sport Kiss MK 15.X rEvo Other CCR Azimuth Home Build Other Rebreather/s: Evolution Megalodon rEvo Other CCR Azimuth Home Build Join Date: Jun 2006 Location: Narragansett, Rhode Island and Hackettstown, New Jersey Posts: 2,907	Re: Counterlung Interface Quote: (Originally Posted by Crazyduck) Dave, Sir, have you had any problems with leaks or water egress into the system through the p-ports? A few friends have commented that they have had problems with p-ports sealing and concerns since it is single o-ring verse double o-rings on other models. Are you using the aquaseal to make the connections perminate or can you peel it off without destroying the o-ring ? Thanks, Andrew I've never had a leak. The Aquaseal is used on the outside of the bag, and acts to do two things: (1) it obviously seals the system, but just as importantly it (2) acts as a sliding-lubricant to allow the fitting to be tightened REALLY tight without tending to twist the counnterlung as it is threaded onto the backing nut. Just a dab on the flange of the fitting where it contacts the outer surface of the bag is perfect. It peels off no worries in case of the desire to remove the connector. Dave __________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com
(Offline)

9th October 2006, 20:06	#8 (permalink)
Crazyduck Underwater Mechanic Current Rebreather/s: Dolphin Other Rebreather/s: Dolphin Join Date: Mar 2005 Location: TEXAS, Dallas/ Ft.Worth Posts: 720	Re: Counterlung Interface Jeff and Dave- Thanks gentleman I appricate it. Thanks, Andrew __________________ Howdy Senor- What’s Happening! Rob Davie April 2005- Presently in a state of transition from Open Circuit to Closed Circuit. "You will not be punished for your anger; you will be punished by it." - Buddha.
(Online)

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