SF2 or REvo rebreathers

[Capt Jim Wyatt]

Knowing Ken, knowing James, and Pete.,....If a friend asked to choose between the two I’d recommend SF2, everything else being equal. You’d get good training on a unit that seems fine to me, but I’ve never really looked at it closely. Especially if you are going to train in cave country.

Look at the O2ptima too.

 

[Tassi Devil Diver]

I have been diving the rEvo for nearly 5 years and if I was in the market today would still go with the rEvo . The rEvo would have to be one of the most innovative rebreather on the market; the split scrubber is just pure genius making it the only rebreather to offer scrubber redundancy. The rMs is the only scrubber monitoring system on the market that gives any indication of scrubber duration, and is very effective and well thought out, the prediction algorithm behind it is just ingenious and works. With the added benefit of maximising the use of sorb. I don't consider the lack of flood tolerance an issue at all, with only four o rings sealing the loop is least likely to flood due an error in building up, I also love the compact size slim form. One of the few rebreathers with true PO2 monitoring redundancy with the 2 extra cells on dream.

 

[Superlyte27]

I have been diving the rEvo for nearly 5 years and if I was in the market today would still go with the rEvo . The rEvo would have to be one of the most innovative rebreather on the market; the split scrubber is just pure genius making it the only rebreather to offer scrubber redundancy. The rMs is the only scrubber monitoring system on the market that gives any indication of scrubber duration, and is very effective and well thought out, the prediction algorithm behind it is just ingenious and works. With the added benefit of maximising the use of sorb. I don't consider the lack of flood tolerance an issue at all, with only four o rings sealing the loop is least likely to flood due an error in building up, I also love the compact size slim form. One of the few rebreathers with true PO2 monitoring redundancy with the 2 extra cells on dream.

Are you certified on any other rebreathers? I thought the Revo was great. I even said so here multiple times. Until I tried a BUNCH of other rebreathers. Today, I'm certified on 5 and teach for two. I'll never dive a Revo again.

 

[Superlyte27]

I don't consider the lack of flood tolerance an issue at all, with only four o rings sealing the loop is least likely to flood due an error.

You fell for the marketing just like I did...
Care to tell me how many orings are really in your loop? It's more than 4.

 

[Superlyte27]

One of the few rebreathers with true PO2 monitoring redundancy with the 2 extra cells on dream.

Marketing again? Granted I'm only certed on 5 units. Some guys here are certed on nearly a dozen, but all 5 units have ppo2 redundancy. One even has a completely redundant solenoid. Not only 4 O2 sensors, but should all 4 sensors fail, the two computers can do backwards math from the two helium sensors and get you close enough to survive on your ppo2.

 

[Capt Jim Wyatt]

I'll never dive a Revo again.

Is that because of politics?

 

[kensuf]

There's no politics in diving..

Regarding the scrubber duration monitoring, AP valves has had the tempstick for awhile now, so it's not innovative or unique to the Revo. The X-CCR either has, or will have (not sure where that is in the Petrel firmware development cycle), a working CO2 sensor too.

 

[Superlyte27]

Is that because of politics?

Nah, while I do hate the politics, I REALLY hated the work of breathing.

 

[Superlyte27]

I do love the Optima, and have lots and lots of hours on it to very deep depths.

 

[Capt Jim Wyatt]

It’s been over a year since I was on a rEvo, I do think the Optima has a much better WOB.