I liked the management of waste rock in refining. makes sense as a byproduct and as an added compexity.

I routed lines from all my refineries (iron, copper, uranium) to a main rock storage area which then I converted (with logic) to landfill, bricks and surplus to sand. Very handy and logical.

I'd suggest adding it back, at least as an option - added a nice level of realism and modest complexity to game.

Several people asked me to remove the stone. Good idea with an option. I implement this in the following updates.

I added this option. But it is disabled by default.