My approach: <spoiler>

[dusk vigil]

That might work. It took me about 15 tries to find a design that worked after I gave up on the previous one. ||I had a lot of trouble with the fluid component. The biggest surprise was that if things weren't directly connected with pumps they would "leak" some fluid and I'd get stuck with 4.9 in my buildings on the last craft.|| I eventually worked out that I could make ||slices of the pipeline and divide the resources with splitters. I went 4 wide, and it seems to go fast enough. I count at the start to make sure that the recirculation via concentrate happens before anything is diverted to matter units.|| I finally got it working and tested with multiple cycles in editor mode, and just finished the second cycle in my real base. It looks like to support 30spm it will run every ~30 minutes and take about 5 minutes for a cycle. My first cycle was slower because I hadn't put in the water return so it got stuck.