Quote: (Originally Posted by trimix)
The SCR argument comes in when I consider the less extreme dives - what if I do a 1 hour dive at 120 fsw, like the O/C guys I'm diving with? Is all the prep time, materials and technology worth the expense of full CCR, and the risks associated? Can I get by with an SCR? Or will I just have the 'wantsies' again a year later for the CCR?
Prep time on a CCR is not going to be any longer than a SCR, likely shorter.
On both, you need to calibrate O2 sensor(s) (You would use an O2 sensor on a SCR, wouldn't you
).
On both, you need to fill scrubber and do pos/neg pressure checks
On SCR you need to check flowrates.
Most people would argue that a SCR has all the inconvenience of a CCR, with none of the advantages.
Besides - you want a CCR for the trimix stuff, so what's the point of buying a SCR that you can't use for what you want to use it for???
If all you want to do is air dives to 40m, stick with a set of twins.
Living in the same city as Gordon, the Kiss would win from a support perspective, but is limited to ~100m. If you want to dive deeper than that, then pick one of the usual suspects - Inspo, Meg, Prism, MK series. Each of them has their proponents, but all are being regularly used to do the sort of dives you want to do. There isn't a wrong answer really... well, except that the Prism is best
Mike