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lermontov

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I am diving a rEvo since 2013, I work in operational safety management. Regarding the rEvo build checklist I am not a fan having read this book on checklists.
Two key recommendations when it comes to safety critical checklists are that firstly, they should be in your own words and secondly, they should be interactive i.e. that you have to manually tick off each step of the build as you complete it. This second part obviously does not apply to the pre-jump list.

Regards
actually i have to agree with that- the first thing i did after my mod 1 was rewrite my checklist out so that it was easier for me to understand
 

lermontov

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I have used the rEvo stock standard checklist religiously for over 500 dives and find it works well.
-meaning added more details not changed its sequence
 

Wibble

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My checklist modifications were formatting, removing Revo Dreams references and adding specific Nerd references. Content and order remain.
 

broncobowsher

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My checklist modifications were formatting, removing Revo Dreams references and adding specific Nerd references. Content and order remain.
That was my intent as well. Get rid of the dream stuff, add NERD with transmitters.

The only reason I changed sequence was doing an in-water gear up (very high ambient temps, cool water, shore dive. Haul stuff to the water, drysuit on, walk into the water to avoid overheating Not the typical prep while on a bench). The sequence didn't fit correctly. I was in the DIL side of the card and was fussing with the drysuit connection. Had not got to the O2 side of the card yet, which starts with opening the O2. Saw the PPO2 drop and spit out the loop. That is when I moved the "open O2" to right after "check ADV". Saw no reason for the O2 to be off while going through the DIL side of the card after checking the ADV. The card isn't as clean with DIL and O2 on separate sides anymore.
 

KenGordon

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I don't understand that more evolved description... AP has a scrubber life monitor, C02 sensor, one of the clearest displays on the market with hall sensors not piezo on the handset. fibre optic hud that wont ever flood like the shearwater. dual controllers in the head. Its own regulators, bov. Custom rubber hose fittings so you can make the hoses exactly the length you want. better flood tolerance and recovery with fmcl and the snorkel on the scrubber.

The JJ and Inspiration were designed by the same person. The JJ improves a whole set of physical things that are not ‘features’ you’d see in a brochure. If is made out of metal, the Inspiration has a 1960s sci-fi case made of plastic, it doesn’t have an o-ring loose and forgettable when you replace the sorb, the JJ plastic parts are machined not moulded.

The philosophy is different too, many manufacturers add stuff to cover potential issues, the JJ is quite simple. Does the temp stick really help? Does a CO2 monitor? I looked at both and I would definitely have ordered all the options on an Inspiration - I have a BOV on my JJ - but the case and, at the time, nasty handset put me off. I do know lots of people with Inspirations though and they are all managing fine.
 

Dsix36

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Didn't you reverse the direction of your loop on the rEvo so that your bottom counterlung is the exhale lung with the original OPV on the bottom? I thought I remember reading something like that but I don't recall if you ever posted the specifics online.
Yes, but I also flood tested it with dewatering prior to reversing the flow. i will not get specific due to someone deciding to experiment like I did.
 

Dsix36

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I wrote my own pre jump check list and have it on whiter electrical tape on my handset. I have been using it for several years now and have only found need to modify one word and add one new line. It may not be 100% comprehensive but it certainly covers the critical points to keep me alive, everything else can be dealt with easily underwater.
 

FIGJAM007

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The JJ and Inspiration were designed by the same person. The JJ improves a whole set of physical things that are not ‘features’ you’d see in a brochure. If is made out of metal, the Inspiration has a 1960s sci-fi case made of plastic, it doesn’t have an o-ring loose and forgettable when you replace the sorb, the JJ plastic parts are machined not moulded.

The philosophy is different too, many manufacturers add stuff to cover potential issues, the JJ is quite simple. Does the temp stick really help? Does a CO2 monitor? I looked at both and I would definitely have ordered all the options on an Inspiration - I have a BOV on my JJ - but the case and, at the time, nasty handset put me off. I do know lots of people with Inspirations though and they are all managing fine.

Yes the philosophy is different and the design is different hence my point the JJ is not a AP 2.0, I like the JJ and nearly got one but got a DPV instead

Its made out of a metal that corrodes and the anodizing that is put on to prevent it also suffers in salt water and heat. Flood the unit and the caustic will strip the inside. Not really a functional problem but it looks like crap (white dots inside your canister or a big build up if you didn't deal with it in time). Galvanic corrosion can also be an issue. It also isn't a great insulator. XCCR has released a delrin can which solves these issues. XCCR is front runner for me at the moment in design.

the case is a sacrificial case (says so in the manual) to protect the scrubber, regs, hoses, cylinders from damage it does a good job of that, like a cave shield for a jj or the condom that stops the sand getting in oring. now the harness on the inspo...eww

Temp stick will give you a warning to see any channeling (segment - gap - segment) it will also warn you when the last segment is getting used and you are approaching breakthrough.

c02 will protect against the oring problem (which is a training problem really). It will detect channeling once it starts to breakthrough. It will also detect against inhale mushroom valve problems like duckweed caught in the spider holding it open.

you don't rely on these sensors you follow your training and dive within the CE tested limits of the unit. But if they ever speak up you really should listen and think, In that way I think they really do help.
 
https://www.shearwater.com/products/peregrine/

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