Question: how can I run a fuel cell and sabatier on one ship, without draining my hydrogen tanks dry?
I'm running fuel cell + electrolysis to generate power while in the shadow of an orbit, and I'm also running electrolysis to generate oxygen for breathing. Since I now have spare CO2 and Hydrogen, I'd like to run sabatier on them, but I don't want the sabatier to take all the hydrogen from my fuel cells, or all the CO2 from my greenhouse.
I don't have any incoming sources of additional hydrogen or CO2 to my space station.
So far the best solution I've found is to only run sabatier during the shadow part of the orbit so that it only runs for a percentage of the time in orbit, but it feels risky, inefficient and dangerous. (I also haven't checked if it actually limits the sabatier enough to keep my tanks from running dry.) Is there a way I can limit sabatier to only take "spare" resources? Perhaps only from specific tanks?
(FYI i'm not playing with solar storms or reliability, so in my case I'm not at risk of a life support machine breaking down.)
