Triton rebreather or Hollis Prism2. Getting into CCR diving with a recreational diver background.

[Superlyte27]

I’ll come to NH and teach the Choptima if you buy the unit from me. Also, the Triton and Choptima are pretty different. Lol

Do you know any instructors that are certified on Choptima near NH? Choptima is really nice for my diving needs but Triton is similar unit and I can find local instructor.

 

[Superlyte27]

A rebreather absolutely changes NDL. Ask my dove buddy’s why I’m getting out 30-50 minutes faster than them when they are on OC. I’m using perfect mix every second. They are using perfect mix for just a few minutes of the entire dive.

 

[BoltSnap]

why I’m getting out 30-50 minutes faster than them when they are on OC.

You are getting out 30-50 minutes faster or them getting out faster?

 

[happy-diver]

Well, started with this bit of a technical document I devised

Blocked off ambient with a nickel scratching together a ghetto version

Then thought if I want access to boats better make it a bit less ghetto

Wine cooler wasn't cutting it so stitched up a sack and got, sacré bleu

See the plan man

and then went diving to my hearts content to learn myself because you only need to learn what you have

A fully optioned Ferrari is not always the best way to get to the end of the street to buy grog and smokes

 

[WOB0.01J]

I’ll come to NH and teach the Choptima if you buy the unit from me. Also, the Triton and Choptima are pretty different. Lol

It never hurts to have more options. DM sent

 

[davehicks]

What exactly are the things that you need to

try dive is absolutely helpful to decide between the units. To have a first impression on units and to get to know the instructor

I have been diving mCCR KISS rebreathers since 2007 and well over 1,000 dives on these units.

There is not much effort required to maintain the PPO2 during a dive on mCCR units. There is one button that typically hangs from your BC chest d-ring called the MAV (manual O2 addition valve). The constant flow O2 orifice is constantly leaking O2 into your loop as long as there is gas in the O2 tank. As long as your maintain the same depth and mild workload your PPO2 will maitain itself at a good constant. On assent or high workload it will drop. To increase the PPO2 you press the MAV button based on your Shearwater computer's PPO2 display. If the PP02 gets too high, you just exhale some loop gas from your nose and make a strong inhale to pull in diluent via the ADV (add diluent valve) in the head.

If this sound complicated at all, then that is what the training is for. Once trained and you have a few hours on the unit it is much like driving a car on the highway. Most drivers will not have their eyes glued to the speedometer constantly adjusting the speed. You become peripherally aware of PPO2 display and make the adjustments without much thinking, just reflex.

I am a photographer and don't have any problems keeping my PPO2 stable and safe. Options like a HUD or Haptic alerts can add safety with additional notifications.

 

[WOB0.01J]

[[/ISPOILER]

I have been diving mCCR KISS rebreathers since 2007 and well over 1,000 dives on these units.

There is not much effort required to maintain the PPO2 during a dive on mCCR units. There is one button that typically hangs from your BC chest d-ring called the MAV (manual O2 addition valve). The constant flow O2 orifice is constantly leaking O2 into your loop as long as there is gas in the O2 tank. As long as your maintain the same depth and mild workload your PPO2 will maitain itself at a good constant. On assent or high workload it will drop. To increase the PPO2 you press the MAV button based on your Shearwater computer's PPO2 display. If the PP02 gets too high, you just exhale some loop gas from your nose and make a strong inhale to pull in diluent via the ADV (add diluent valve) in the head.

If this sound complicated at all, then that is what the training is for. Once trained and you have a few hours on the unit it is much like driving a car on the highway. Most drivers will not have their eyes glued to the speedometer constantly adjusting the speed. You become peripherally aware of PPO2 display and make the adjustments without much thinking, just reflex.

I am a photographer and don't have any problems keeping my PPO2 stable and safe. Options like a HUD or Haptic alerts can add safety with additional notifications.

this is really useful information. How many computers do you use? Like a wrist computer plus a shearwater nerd? Do rebreather comes with its own computer?

 

[tbone1004]

[[/ISPOILER]

this is really useful information. How many computers do you use? Like a wrist computer plus a shearwater nerd? Do rebreather comes with its own computer?

What he described is basically how all rebreathers work for reference, difference is you hear a click from the solenoid vs a constant hiss from a leaky valve.

mCCR's are computer agnostic so you order them with whatever you want to monitor, Divesoft, Shearwater, etc. quantity of them is a heated debate but the KISS units only come standard with a single computer, it is highly recommended you get a HUD which is standard on pretty much every other unit.

Disclaimer, my primary ccr only has a single computer on it but it is at least a Freedom so it gives me haptic feedback. This falls firmly within "do as I say, not as I do" and is very much not recommended.

 

[Tassi Devil Diver]

CCR try dives when you aren't already experience on a CCR are basically useless as an FYI.

I found my one and only try dive on a rebreather to be very valuable, it was enough to tell me I like diving a rebreather and that the rEvo would suit my needs, and by the way trims out just fine in a wet suit ;-)

 

[Marie13]

What he described is basically how all rebreathers work for reference, difference is you hear a click from the solenoid vs a constant hiss from a leaky valve.

mCCR's are computer agnostic so you order them with whatever you want to monitor, Divesoft, Shearwater, etc. quantity of them is a heated debate but the KISS units only come standard with a single computer, it is highly recommended you get a HUD which is standard on pretty much every other unit.

Disclaimer, my primary ccr only has a single computer on it but it is at least a Freedom so it gives me haptic feedback. This falls firmly within "do as I say, not as I do" and is very much not recommended.

Petrel 3 now has the haptic alarms. But we all know you have issues with Shearwater.

I got a blinky LED HUD as I wasn’t sure I wanted a Nerd 2. At $700 (plus what KISS charged to wire the head with the plug for the HUD $300ish), it was less than half the cost of a NERD 2.