Episode 41 here, and today we return to our Saltpeter flats.
not to knock all your work, but unless it was changed obsidian pipes will pull through blocks so you could have put them under the floor.
and you removed a built in safety feature on your rig when you moved the redstone lamps. Before it would disable the steam traps when you turned on the lights, now it doesn’t. You would have needed a few more relays but I would have used them and kept the safety feature.