For the IDA71 homebuilder

lilou · 16th February 2006, 19:20

Is there anybody try to add over shoulder counterlung on an IDA71 ?
I mean in keeping the original back counterlung.
Thanks by advance

Lilian

PS : sorry for my poor english

zepp · 12th March 2006, 10:36

Quote: (Originally Posted by lilou)

Is there anybody try to add over shoulder counterlung on an IDA71 ?
I mean in keeping the original back counterlung.
Thanks by advance

Lilian

PS : sorry for my poor english

I have thought about it, but then I would not have much of the original left. I have found the back lug to be OK as it is. The only problem is to include a water trap.

lilou · 12th March 2006, 15:26

Hello Zepp,

I wait for my new OTS couterlung which is built by a friend of mine.
In the first time a leave the original lung with a strap to minimize his volume, and in a second time i remove the original lung.
If you want i inform you on the best solution.

Best regards

Lilian

zepp · 12th March 2006, 17:35

Yes, I would like you to let me know how you get on. My IDA is ready for its first water test in the swimming pool.

GKAM · 25th May 2006, 07:36

Quote: (Originally Posted by lilou)

Hello Zepp,

I wait for my new OTS couterlung which is built by a friend of mine.
In the first time a leave the original lung with a strap to minimize his volume, and in a second time i remove the original lung.
If you want i inform you on the best solution.

Best regards

Lilian

Hi Lilian,

any luck yet?

dave · 1st September 2006, 22:15

hi there i am working on my ida71 and am very interested in what new ideas everyone is coming up with. my rig came in near new condition and i am using a board from mark and have hooked that to R22D sensors in the inhalation side of the left scrubber port . through the exhalation port i hooked up hose with a regular male whip end and valve to either plugin offboard gases to add manually or i can roll to the left when swimming and remove water that ingressed into to exhalation hose by filling the counterlung and exhaling with the button pressed.the only hole i had to put in the bag was a p connector to run my 4th cell for deco and i put that in through the hole in the left shoulder of the case , some minor reshaping of the case was nessecary , good luck and good diving. will post some pics soon.

GKAM · 2nd September 2006, 03:59

Hi Dave,

Sounds cool

!!!
Post some photos soon pleeeaseeee. I can't wait to see how this looks like

Quote: (Originally Posted by dave)

hi there i am working on my ida71 and am very interested in what new ideas everyone is coming up with. my rig came in near new condition and i am using a board from mark and have hooked that to R22D sensors in the inhalation side of the left scrubber port . through the exhalation port i hooked up hose with a regular male whip end and valve to either plugin offboard gases to add manually or i can roll to the left when swimming and remove water that ingressed into to exhalation hose by filling the counterlung and exhaling with the button pressed.the only hole i had to put in the bag was a p connector to run my 4th cell for deco and i put that in through the hole in the left shoulder of the case , some minor reshaping of the case was nessecary , good luck and good diving. will post some pics soon.

Skipbreather · 3rd September 2006, 00:07

Greetings to our newest IDA71 divers.

It’s been several years now since I dove (dived?) mine, but it still sits quietly in a corner of my basement, green with envy (pun intended!) doubtless from looking at my Meg. All it would take to dive it would be 3 new K1D cells.

First things first: Do yourself a BIG favor and read this thread: http://www.rebreatherworld.com/home-...onnectors.html . It just might save your life.

Next: Know that if you are at or above “average” size, it is not a question of IF, only a question of WHEN you will over-breath your scrubber if you have your rig in the popular single scrubber configuration. 99% of the time all will be fine, but be mentally ready w/ a plan for that other wicked 1%.

Also: Get bigger hoses and especially a bigger DSV. Yea, the stock one is already paid for but trust me-and I’m as cheep as they come- it will be money well spent. The stock DSV is VERY restrictive.

Last: I came up w/ a passable water trap for my 71 that seemed to do the job nicely for smallish amounts of water. slobber, etc. The pictures show both the individual parts and the parts as assembled but without being installed inside the CL in order to show how everything fits together. The big corrugated hose is actually a generic replacement rack and pinion steering boot bought from a local auto parts store. The smaller hose only goes ¾ of the way up the inside of the big hose and acts as a stand pipe. Water accumulates in the space between the inside of the big hose and the outside of the small hose. No, it wasn’t perfect but it was a LOT better than nothing, and it eliminated the internal T failure point (see above mentioned thread). The trap necessitates removing the space robbing hose that pipes the OPV output to the top of the CL. The OPV remains in place but w/ the original output capped off and holes drilled in its plastic cover. That lets the OPV output vent at your right shoulder blade. Works great & really cleans up the inside of the bag.

Have fun & dive safe-
Ken

**Dave Sutton** · 3rd September 2006, 16:20

Hey Guys,

Some words from the one who started it all in the IDA-71 world... ;-)

(1): We have abandoned the single scrubber configuration for al diving below perhaps 20 meters. We now use both scrubbers, internal 02 bottle, and external diluent slung as a stage bottle and fed to the rig thru quick disconnects. Choose the size of the stage to suit depth and bailout requirements. My own rig now allows modular use of single scrubber and internal diluent and two scrubbers with external diluent.... choose according to workload and depth intended.

(2): One of the BEST features of the IDA-71 is the internal counterlung... OTS counterlungs are, IMHO, a COUNTERPRODUCTIVE excercise. The internal counterlung is streamlined, snag-free, uncluttered, and in a good position for WOB. Yes, the system was designed for a more vertical diving position (mine clearance diving) than that desired for sport diving use. BALANCE THE RIG by adding 4 KG of lead into the inside of the top of the back-shell to trim the rig to neutral when diver is laying face down. If this is done, then the rig balances and breathes perfectly. I would NEVER want an OTS counterlung rig after diving internal lug rigs (KISS, Mark-15, and the IDA series). They are NOT an improvement in my opinion.

(3): DO READ the information provided on the potential point of failure of the hose leading thru the counterlung to the tops of the scrubbers. Remove the hose ends and re-attach them using new hardware. This may save your life.

(4): Kens water trap is nice, but I have never found one to be a requirement. The interstices in the scrubbers themselves are adequte for all but a major flood.

(5): The DSV *is* nice and is also *very restrictive* as Ken mentions. Upgrade hose diameters and use a better DSV... trust *us* on this too. I use a KISS OC/CC DSV routed to a gas block on the side of the rig that accepts offboard gas thru a QD to my sgate bottle and then distributes that gas to drysuit inflator hose, wings inflator hose, OC/CC DSV, and internal dilkuent feed.

(6): The removal of the internal OP valve feed line is a nice thing.....

(7): Adding a drysuit piss-zipper (relief zipper) to the counterlung makes is easy to access the inside for maintenance and drying.. ;-). (And I bet that's the firt time ya'll have thought about that....!). Easy to add and not expensive.... waterproof zippers are great things in counterlungs!

Best to all,

Dave Sutton

zepp · 3rd September 2006, 17:21

Quote: (Originally Posted by Dave Sutton)

(7): Adding a drysuit piss-zipper (relief zipper) to the counterlung makes is easy to access the inside for maintenance and drying.. ;-). (And I bet that's the firt time ya'll have thought about that....!). Easy to add and not expensive.... waterproof zippers are great things in counterlungs!

Best to all,

Dave Sutton

What an excellent idea....Thanks, I will do that

16th February 2006, 19:20	#1 (permalink)
lilou New Member Current Rebreather/s: Optima Other Rebreather/s: Not Bought Yet Join Date: May 2005 Location: South of the France Posts: 54	For the IDA71 homebuilder Is there anybody try to add over shoulder counterlung on an IDA71 ? I mean in keeping the original back counterlung. Thanks by advance Lilian PS : sorry for my poor english
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12th March 2006, 10:36	#2 (permalink)
zepp "Dyson with Death" daddy Current Rebreather/s: Classic Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Home Build Join Date: Sep 2005 Location: midlands Posts: 284	Re: For the IDA71 homebuilder Quote: (Originally Posted by lilou) Is there anybody try to add over shoulder counterlung on an IDA71 ? I mean in keeping the original back counterlung. Thanks by advance Lilian PS : sorry for my poor english I have thought about it, but then I would not have much of the original left. I have found the back lug to be OK as it is. The only problem is to include a water trap. __________________ I'm not a bad person.....HONEST my homebuild photos http://www.rebreatherworld.com/photo...ery.php/cat/48 CLASSIC KISS #052/shearwater The Dyson is back
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12th March 2006, 15:26	#3 (permalink)
lilou New Member Current Rebreather/s: Optima Other Rebreather/s: Not Bought Yet Join Date: May 2005 Location: South of the France Posts: 54	Re: For the IDA71 homebuilder Hello Zepp, I wait for my new OTS couterlung which is built by a friend of mine. In the first time a leave the original lung with a strap to minimize his volume, and in a second time i remove the original lung. If you want i inform you on the best solution. Best regards Lilian
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12th March 2006, 17:35	#4 (permalink)
zepp "Dyson with Death" daddy Current Rebreather/s: Classic Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Home Build Join Date: Sep 2005 Location: midlands Posts: 284	Re: For the IDA71 homebuilder Yes, I would like you to let me know how you get on. My IDA is ready for its first water test in the swimming pool. __________________ I'm not a bad person.....HONEST my homebuild photos http://www.rebreatherworld.com/photo...ery.php/cat/48 CLASSIC KISS #052/shearwater The Dyson is back
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25th May 2006, 07:36	#5 (permalink)
GKAM digital nomad Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: May 2005 Location: Greece Posts: 254	Re: For the IDA71 homebuilder Quote: (Originally Posted by lilou) Hello Zepp, I wait for my new OTS couterlung which is built by a friend of mine. In the first time a leave the original lung with a strap to minimize his volume, and in a second time i remove the original lung. If you want i inform you on the best solution. Best regards Lilian Hi Lilian, any luck yet? __________________ Stay #
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1st September 2006, 22:15	#6 (permalink)
dave New Member Current Rebreather/s: Other CCR Home Build Other Rebreather/s: Other CCR Home Build Join Date: Oct 2005 Location: canada Posts: 8	Re: For the IDA71 homebuilder hi there i am working on my ida71 and am very interested in what new ideas everyone is coming up with. my rig came in near new condition and i am using a board from mark and have hooked that to R22D sensors in the inhalation side of the left scrubber port . through the exhalation port i hooked up hose with a regular male whip end and valve to either plugin offboard gases to add manually or i can roll to the left when swimming and remove water that ingressed into to exhalation hose by filling the counterlung and exhaling with the button pressed.the only hole i had to put in the bag was a p connector to run my 4th cell for deco and i put that in through the hole in the left shoulder of the case , some minor reshaping of the case was nessecary , good luck and good diving. will post some pics soon.
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2nd September 2006, 03:59	#7 (permalink)
GKAM digital nomad Current Rebreather/s: Other CCR Other Rebreather/s: Other CCR Join Date: May 2005 Location: Greece Posts: 254	Re: For the IDA71 homebuilder Hi Dave, Sounds cool !!! Post some photos soon pleeeaseeee. I can't wait to see how this looks like Quote: (Originally Posted by dave) hi there i am working on my ida71 and am very interested in what new ideas everyone is coming up with. my rig came in near new condition and i am using a board from mark and have hooked that to R22D sensors in the inhalation side of the left scrubber port . through the exhalation port i hooked up hose with a regular male whip end and valve to either plugin offboard gases to add manually or i can roll to the left when swimming and remove water that ingressed into to exhalation hose by filling the counterlung and exhaling with the button pressed.the only hole i had to put in the bag was a p connector to run my 4th cell for deco and i put that in through the hole in the left shoulder of the case , some minor reshaping of the case was nessecary , good luck and good diving. will post some pics soon. __________________ Stay #
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3rd September 2006, 16:20	#9 (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: For the IDA71 homebuilder Hey Guys, Some words from the one who started it all in the IDA-71 world... ;-) (1): We have abandoned the single scrubber configuration for al diving below perhaps 20 meters. We now use both scrubbers, internal 02 bottle, and external diluent slung as a stage bottle and fed to the rig thru quick disconnects. Choose the size of the stage to suit depth and bailout requirements. My own rig now allows modular use of single scrubber and internal diluent and two scrubbers with external diluent.... choose according to workload and depth intended. (2): One of the BEST features of the IDA-71 is the internal counterlung... OTS counterlungs are, IMHO, a COUNTERPRODUCTIVE excercise. The internal counterlung is streamlined, snag-free, uncluttered, and in a good position for WOB. Yes, the system was designed for a more vertical diving position (mine clearance diving) than that desired for sport diving use. BALANCE THE RIG by adding 4 KG of lead into the inside of the top of the back-shell to trim the rig to neutral when diver is laying face down. If this is done, then the rig balances and breathes perfectly. I would NEVER want an OTS counterlung rig after diving internal lug rigs (KISS, Mark-15, and the IDA series). They are NOT an improvement in my opinion. (3): DO READ the information provided on the potential point of failure of the hose leading thru the counterlung to the tops of the scrubbers. Remove the hose ends and re-attach them using new hardware. This may save your life. (4): Kens water trap is nice, but I have never found one to be a requirement. The interstices in the scrubbers themselves are adequte for all but a major flood. (5): The DSV is nice and is also very restrictive as Ken mentions. Upgrade hose diameters and use a better DSV... trust us on this too. I use a KISS OC/CC DSV routed to a gas block on the side of the rig that accepts offboard gas thru a QD to my sgate bottle and then distributes that gas to drysuit inflator hose, wings inflator hose, OC/CC DSV, and internal dilkuent feed. (6): The removal of the internal OP valve feed line is a nice thing..... (7): Adding a drysuit piss-zipper (relief zipper) to the counterlung makes is easy to access the inside for maintenance and drying.. ;-). (And I bet that's the firt time ya'll have thought about that....!). Easy to add and not expensive.... waterproof zippers are great things in counterlungs! Best to all, Dave Sutton __________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com Last edited by Dave Sutton : 3rd September 2006 at 16:29.
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3rd September 2006, 17:21	#10 (permalink)
zepp "Dyson with Death" daddy Current Rebreather/s: Classic Kiss Other CCR Home Build Other Rebreather/s: Not Bought Yet Other CCR Home Build Join Date: Sep 2005 Location: midlands Posts: 284	Re: For the IDA71 homebuilder Quote: (Originally Posted by Dave Sutton) (7): Adding a drysuit piss-zipper (relief zipper) to the counterlung makes is easy to access the inside for maintenance and drying.. ;-). (And I bet that's the firt time ya'll have thought about that....!). Easy to add and not expensive.... waterproof zippers are great things in counterlungs! Best to all, Dave Sutton What an excellent idea....Thanks, I will do that __________________ I'm not a bad person.....HONEST my homebuild photos http://www.rebreatherworld.com/photo...ery.php/cat/48 CLASSIC KISS #052/shearwater The Dyson is back
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