How deep has an Inspiration been dived successfully?

Paul G

Has anyone used an Inspiration for dives over 150m? I know there is an issue with the buzzer causing problems at about 170m, which can be fixed by cutting the buzzer off. So how deep has an Inspiration been dived? I'm particularly interested in any dives that have been done to around 180m or so. What electronics were fitted to the units - Classic, Vision, Hammerhead? Also were there any problems on these dives?

Cheers,
Paul

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heyydude

Don Shirley dived his Hammerhead equipped Inspo to 800 feet during the dive with Dave Shaw.

The Primary imploded at around 800 because the night before he had took the back off to do a fix to the battery ring, and spilled some of the Mineral oil.

But the Secondary worked fine, as did the rest of the Inspo, I presume, and Don (after a hellish deco) survived.

Not that this is suggested by any manufacturer involved, for sure.

Kevin Juergensen
Juergensen Marine, Inc.

caveseeker7

177 meters in 2002 by Capt. Trevor Jackson, accompanied by Dr. Simon Mitchell on his MK15.5

Jackson's book "Wreck Diving in Southern Queensland" contains details about the dive.
More info in Dave's post.

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Cheers
Stefan



"Political Correctness is a doctrine, fostered by a delusional, illogical minority,
and rabidly promoted by an unscrupulous mainstream media,
which holds forth the proposition that it is entirely possible to pick up a turd by the clean end.!"

andibk

Simon Liddiard did a 200 meter dive somewhere in Indonesia. I do not believe Simon had any difficulties, non that I remember hearing about. I have also heard about 3 German guys that dove to 225 m. From what I have heard the 3 guys to 225 m they needed 5 Inspirations. Three of them failed.

andibk

bormes

teksimple

I guess "successful" is relative. In this case, it means the person survived but not necessarily the rebreather.
Obviously an oil-filled Hammerhead makes the Inspiration more capable of extreme depths, but does that still make it an Inspiration?

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Luiz Rocha

So from that I take that it is safe between 100 and 150 m?

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Luiz Rocha - http://www.luizrocha.com/

Paul G

Thanks for the replies.

Does anyone know if the buzzers caused the problems for the guys in the Red Sea, or was it something else in the electronics? It sounds like the units have been fine (if work rate is kept low) but the electronics could be a problem. I know that Trevor Jackson had CO2 problems on his dive with Simon but they were working hard to get down the anchor line.

Supplimentary question - What's the longest time anyone has spend on an Inspiration? A deep dive requires lots of deco, so how long is the scrubber going to last? How long are divers getting out of their Inspirations fitted with Temp Sticks (regardless of the depth of the dive)? I've done a 5 hour dive on my Inspiration without any problem and I've heard of people doing 6 hours.

Cheers,
Paul

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Nick uk.

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jradomski

I have done considerably longer than 6 hours... I Had oc bailout available incase any co2 symptoms started.. I was carefully tracking my o2 usage, which gives me a good idea on how much co2 I was generating.. for rough estimates 1l of o2= 1 l of co2, but a more realistic average is 1l of o2=.9l of co2.. While I am on deco and just meditating my o2 consumption is VERY low..

Using 797 grade of sofnolime the scubber can absorb >140l of co2 per kg, so you can expect the scrubber to be able to absorb 350l of co2..

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Joe Radomski
CCR Trimix Instructor Trainer
ANDI Instructor Trainer Director #10

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