IDA 71 in NZ

Packhorse · 1st April 2008, 05:32

A bit more progress this week.

I managed to get some fittings from McMasters ( Thanks again Brad) and have completed the O2 pneumatics as per Dave Suttons design (Thanks Dave)

I have modified the counter lung for use with a single scrubber and the exhale hose now bypasses the lung completely as seen here....

I uses 1.2mm thick EPMD rubber and aquasealed it to the lung leaving the existing rubber mounts in place. You need to buff the patches up with some sandpaper but once you do this they stick like the proverbial to a blanket.

I also found a nice cheap OPV for only $22.50nz here... scuba diving equipment-scuba gear-nz dive gear shop-ocean equipment nz
I guess it is a Zeagle one.

Packhorse · 3rd June 2008, 11:40

Well my 1st pool dive with my unit was a sucess!
Found a few things that need changing though.
O2 leak from ADV pipe fitting.
Dil/inflator tank leak from OPV.
Need to add a plate to make the harness more stable.
Need to replace the harness (transpac) as its just too big.
Need more lead up top. I used 2kgs but perhaps 4kg would be better? What is everyone else using?
Need to lengthen the valve knob on my O2 so I can turn it on and off while using the unit. Any simple solutions???

Thanks for joining me Ray. Was good to see your unit in action.

**Dave Sutton** · 3rd June 2008, 19:43

Quote: (Originally Posted by Packhorse)

Need more lead up top. I used 2kgs but perhaps 4kg would be better? What is everyone else using?

4 KG mounted to the inside of the lid at the top.

Dave

.

kiwi_diver · 4th June 2008, 00:52

No worries Greg, was great to see another new Rebreather diver making progress. Your 71 is nice and light, hope you can keep it that way. As I said, you can have the use of my rEvodream for a while if that will keep things moving along and my old BOV and delrin mouthpiece etc too.

Maxximus · 4th June 2008, 22:24

Quote: (Originally Posted by Dave Sutton)

4 KG mounted to the inside of the lid at the top.

Dave

.

I tried with 2 Kg & a drysuit & it didn´t work, with 3 kg its AOK. I think that´s the minimum weight you´ve gotta have.

1st April 2008, 05:32	#21 (permalink)
Packhorse Custom Title Allowed! Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jan 2008 Location: Auckland New Zealand Posts: 106	Re: IDA 71 in NZ A bit more progress this week. I managed to get some fittings from McMasters ( Thanks again Brad) and have completed the O2 pneumatics as per Dave Suttons design (Thanks Dave) I have modified the counter lung for use with a single scrubber and the exhale hose now bypasses the lung completely as seen here.... I uses 1.2mm thick EPMD rubber and aquasealed it to the lung leaving the existing rubber mounts in place. You need to buff the patches up with some sandpaper but once you do this they stick like the proverbial to a blanket. I also found a nice cheap OPV for only $22.50nz here... scuba diving equipment-scuba gear-nz dive gear shop-ocean equipment nz I guess it is a Zeagle one. __________________ There are no stupid questions, but there are a LOT of inquisitive idiots. Last edited by Packhorse : 1st April 2008 at 06:09.
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3rd June 2008, 11:40	#22 (permalink)
Packhorse Custom Title Allowed! Current Rebreather/s: Not Bought Yet Other Rebreather/s: Not Bought Yet Join Date: Jan 2008 Location: Auckland New Zealand Posts: 106	Re: IDA 71 in NZ Well my 1st pool dive with my unit was a sucess! Found a few things that need changing though. O2 leak from ADV pipe fitting. Dil/inflator tank leak from OPV. Need to add a plate to make the harness more stable. Need to replace the harness (transpac) as its just too big. Need more lead up top. I used 2kgs but perhaps 4kg would be better? What is everyone else using? Need to lengthen the valve knob on my O2 so I can turn it on and off while using the unit. Any simple solutions??? Thanks for joining me Ray. Was good to see your unit in action. __________________ There are no stupid questions, but there are a LOT of inquisitive idiots.
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3rd June 2008, 19:43	#23 (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: IDA 71 in NZ Quote: (Originally Posted by Packhorse) Need more lead up top. I used 2kgs but perhaps 4kg would be better? What is everyone else using? 4 KG mounted to the inside of the lid at the top. Dave . __________________ "Silent Diving with No Bubbles and No Politics".... www.nobubblediving.com
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4th June 2008, 00:52	#24 (permalink)
kiwi_diver Alias - Ray Mansell Current Rebreather/s: Other SCR Other Rebreather/s: Other SCR Join Date: Aug 2007 Location: Auckland, New Zealand Posts: 157	Re: IDA 71 in NZ No worries Greg, was great to see another new Rebreather diver making progress. Your 71 is nice and light, hope you can keep it that way. As I said, you can have the use of my rEvodream for a while if that will keep things moving along and my old BOV and delrin mouthpiece etc too. __________________ Ray. == Latitude 36 South, where the deeper you dive, the warmer it gets! ==
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4th June 2008, 22:24	#25 (permalink)
Maxximus New Member Current Rebreather/s: Home Build Other Rebreather/s: Home Build Join Date: Jan 2008 Location: Sweden Posts: 6	Re: IDA 71 in NZ Quote: (Originally Posted by Dave Sutton) 4 KG mounted to the inside of the lid at the top. Dave . I tried with 2 Kg & a drysuit & it didn´t work, with 3 kg its AOK. I think that´s the minimum weight you´ve gotta have. __________________ Russian IDA-71 is the way to go! Will soon be modified to mCCR...I´m putting my faith in russian steal(th) technology
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