beester
Contributor
I don't realy understand these kind of inquiries. I can understand asking questions about the functioning etc of scr and ccr, because it realy is very interesting technology.
Maybe I'm overly conservative but hey... asking about rebreather courses when you're a beginning diver (checking the OPs profile) is a bit strange IMO.
I know one rebreather diver in my immediate circle and he's an instructor with 1000+ dives who is also extended range, trimix certified and is doing so much dives using trimix or heliox that switching to rebreather was the economical and practical decision.
Rebreathing does not make sense imo to use for shallow water extended dives. You can easily do that on air or nitrox. You could even extend that to about 100 feet without too much hassle if you use big enough tanks and are not afraid of deco obligation.
Next to that I don't see that a new diver (and I consider myself also a new diver) should consider training on rebreathers. The taskloading because of simple facts as buoyancy (not being able to use your lungs anymore for buoyancy), or setting up the rebreather set might be already too much for beginning divers. If you up the taskloading because of emergency drills this is even more critical. And I'm not even talking about the intrinsic risks involved with rebreathing (hypercapnia, hypoxia, hyperoxia)...
Why should an beginning or even intermediate diver need rebreathing?
Maybe I'm just a bit too paranoid but I'm under the assumption that you first learn to crawl... then walk before starting to run.
Maybe I'm overly conservative but hey... asking about rebreather courses when you're a beginning diver (checking the OPs profile) is a bit strange IMO.
I know one rebreather diver in my immediate circle and he's an instructor with 1000+ dives who is also extended range, trimix certified and is doing so much dives using trimix or heliox that switching to rebreather was the economical and practical decision.
Rebreathing does not make sense imo to use for shallow water extended dives. You can easily do that on air or nitrox. You could even extend that to about 100 feet without too much hassle if you use big enough tanks and are not afraid of deco obligation.
Next to that I don't see that a new diver (and I consider myself also a new diver) should consider training on rebreathers. The taskloading because of simple facts as buoyancy (not being able to use your lungs anymore for buoyancy), or setting up the rebreather set might be already too much for beginning divers. If you up the taskloading because of emergency drills this is even more critical. And I'm not even talking about the intrinsic risks involved with rebreathing (hypercapnia, hypoxia, hyperoxia)...
Why should an beginning or even intermediate diver need rebreathing?
Maybe I'm just a bit too paranoid but I'm under the assumption that you first learn to crawl... then walk before starting to run.