yet another wannabee question

[W Wilberforce]

Hello All,
Am thinking of getting an rebreather in the future and would like to know a few things (please can you help me out?).
1) My choice is refined to the Inspiration classic, KISS or rEVO as they are all godd value for money. Looking at the secondhand market, it is almost entirely Inspirations;
What are the important things to look out of when buying seconhand: most adverts are full of incomprehensible TLA's: ADV, BOV, DSV, WOB etc etc and bob howell head/ juergensen head's, presumably one needs a manual to understand them all. I.E. what deficiences in a rebreather cost the most to

2) Is it standard practice to deliver a second-hand unit to an instructor rather than the purchaser-novice and will AP valves allow this?

3)With the mCCR, do users maintain a constant setpoint throughout the dive or let in decline on ascent? Is it easier to switch to staged o2 than to flush the unit several times at the 6m last stop?

4) Does anyone have any experience of the rEVO II? I notice it has only 2 oxygen sensors, is this a bad thing?

[nigelH]

Originally Posted by spunkmire

Hello All,
Am thinking of getting an rebreather in the future

Mad fool....

and would like to know a few things (please can you help me out?).
1) My choice is refined to the Inspiration classic, KISS or rEVO as they are all godd value for money. Looking at the secondhand market, it is almost entirely Inspirations;

Probably because there are still more Inspirations out there than everything else put together.

What are the important things to look out of when buying secondhand: most adverts are full of incomprehensible TLA's: ADV, BOV, DSV, WOB etc etc and bob howell head/juergensen head's, presumably one needs a manual to understand them all. I.E. what deficiences in a rebreather cost the most to

You want normal. The Vision is the new head and depresses the price of the 'Classic' units. Cracked/leaking classic handsets are a big problem as they cost a bit to fix. Most other things are fixable. Beware of 'improvements' like BOV/DSV/special heads/non-standard harnesses/lungs etc. as they might be done well but not all divers are good engineers.
You are going to learn rebreather diving on this thing and that will mess your head up enough without throwing in more complications. You want one you can dismantle, reassemble and dive straight off the pages of the manual. Hence an ADV (factory option) is about as far as you want to go. Other things in a box ready to refit later might be a bonus...

2) Is it standard practice to deliver a second-hand unit to an instructor rather than the purchaser-novice and will AP valves allow this?

Not these days. People used to be hyper sensitive about these things but I think we've grown out of it now. If I paid my money I'd expect to receive the goods especially second hand where I'd want to go over it very carefully before turning up for a course.

[Mark Chase]

Originally Posted by spunkmire

Hello All,
Am thinking of getting an rebreather in the future and would like to know a few things (please can you help me out?).
1) My choice is refined to the Inspiration classic, KISS or rEVO as they are all godd value for money. Looking at the secondhand market, it is almost entirely Inspirations;
What are the important things to look out of when buying seconhand: most adverts are full of incomprehensible TLA's: ADV, BOV, DSV, WOB etc etc and bob howell head/ juergensen head's, presumably one needs a manual to understand them all. I.E. what deficiences in a rebreather cost the most to

2) Is it standard practice to deliver a second-hand unit to an instructor rather than the purchaser-novice and will AP valves allow this?

3)With the mCCR, do users maintain a constant setpoint throughout the dive or let in decline on ascent? Is it easier to switch to staged o2 than to flush the unit several times at the 6m last stop?

4) Does anyone have any experience of the rEVO II? I notice it has only 2 oxygen sensors, is this a bad thing?

PM sent


ATB

Mark Chase

[ardhill]

There is a fair bit of difference between those units. Well, the Revo and Kiss are similar - both manual units with back mounted lungs, but the Inspro is a different beast altogether - electronic with over the shoulder lungs.

operation, depth limits and general use varies between the manual and electronic.

The Revo is pretty new, so you won't get too many 2nd hand worldwide, let alone the UK. Oh, and it has 3 O2 cells - 2 Huds, which is different, connected but different.

Just be careful about spending a load of money before knowing what you are buying - it is expensive enough this scuba game

[Note: I do not own a rebreather, but have done a bit of research myself, so could be talking a load of rubbish]

[Decodiver]

Originally Posted by spunkmire

Hello All,
Am thinking of getting an rebreather in the future and would like to know a few things (please can you help me out?).
1) My choice is refined to the Inspiration classic, KISS or rEVO as they are all godd value for money. Looking at the secondhand market, it is almost entirely Inspirations;
What are the important things to look out of when buying seconhand: most adverts are full of incomprehensible TLA's: ADV, BOV, DSV, WOB etc etc and bob howell head/ juergensen head's, presumably one needs a manual to understand them all. I.E. what deficiences in a rebreather cost the most to

2) Is it standard practice to deliver a second-hand unit to an instructor rather than the purchaser-novice and will AP valves allow this?

3)With the mCCR, do users maintain a constant setpoint throughout the dive or let in decline on ascent? Is it easier to switch to staged o2 than to flush the unit several times at the 6m last stop?

4) Does anyone have any experience of the rEVO II? I notice it has only 2 oxygen sensors, is this a bad thing?

1. Ok, read a lot about CCRs here and on RebreatherWorld and the abbreviations should become easier to understand.

2. Some sellers require this, I guess it discharges their vicarious responsibility, in their opinion.

3. With mCCR, you choose your PPO2 and maintain it, manually, throughout the dive, ascent included.

4. The rEvo II has a minimum of 3 sensors shared between 2 rEvodreams, one which has 2 cells and the second 1 cell (or 2 if you run 4 like me). I am the only UK rEvo Instructor and IT. It is a great rebreather, if you want a look at one, come to the NEC diveshow and I will be showing mine on the Deep Blue Tech stand (together with a Boris, a KISS, a Meg, an Inspo and an Evolution!).

The rEvo is a great mCCR, I also own a Classic KISS, an Ouroboros, and a Megalodon so am able to give an unbiased opinion on different mCCR and eCCR.

If you have any other questions, post them here and I will reply as best I can.

Cheers,

Dave Cooper.