This is mainly for critical process such as power, where you cool steam to reuse the water. Since power fluctuates and water usage therefore fluctuates, its hard to keep perfectly balanced. But is something I would personally use in many other cases.
This would allow for ensuring the container doesn't fill, but also doesn't get drained by trucks bringing it else where.
Add ability to both "keep full" and "empty"
I think it would be good to have just a single slider to do this.
Normally you either move the left slider up, or the right slider left.
I want just one slider to move one way or another that defaults in the center.
Marked 1 topic as a duplicate of this one:
It would be really nice in certain situations if we could use both sliders on a storage container. So we can make it empty the excess if the container gets too full, or truck in some more material if the container gets too empty.
This would be great for those closed loops (e.g. blast furnace -> exhaust scrubber -> mixer [acid] -> mixer [glass mix] -> blast furnace).
Plus I don't see why keep empty and keep full should be mutually exclusive.
The workaround is two sequential storages, the first one set to export and the second to import. However, it just takes up space for no good reason, so being able to set both sliders would be nice.