I'm inside an area I can't wash out and it had zero oil so I'm grinding.
I've noticed I can almost tell where each concrete truck poured out. The very first had this dark blue like finish and I almost can't grind it. Then around it is some that grinds easily. While other areas it's a mix. It...
Diamond grinding my floor for epoxy and it's kicking my ****..... Anyway how much more should I grind the left side of the picture? Do I need to get it where everything is scuffed (about where its at) or do I need to keep going till it's all "white" like it is down the saw joint I fill with gel...