"I'll think I'll make one here and show folks rather than explain it".

Hey, Tom, I think this is a pretty good idea. As an "Excel" user , the CO2 spraybar concept is hard to visualise. I'm finding the tech talk a bit difficult to follow. I'd love to see a simple diagram to see how this system works. While the Excel carbon-source method delivers, C02 injection appears to be a more cost efficient system in the long-term. But this is a bit of a guess.

Have the cost efficiency figures been calculated by anyone?

Robin