CCR vs. OC - Holy War or Just Two Worlds?

It is one of the most hotly debated questions in technical diving: Closed Circuit Rebreather (CCR) or the classic Open Circuit (OC) system? Some swear by infinite gas, warm breathing air, and absolute silence without bubbles. Others love the simplicity, the familiar feedback of bubbles, and the proven system on their back.

At 5bar, we make no secret of it:

Wax has switched and is already accumulating his first 50 diving hours with his JJ-CCR Rebreather.

Jet sticks with his beloved D12 twin tanks and enjoys the bubbling and the relaxed, proven diving.

Here you can see the first joint dive with both configurations.

What still looks like fun here will, of course, be further expanded in this blog series: What are the advantages, what are the disadvantages? Why should one switch – or rather stick with OC? Do you want to go deeper or do you even need more than one hour of dive time per dive?

Probably countless questions arise.