Can we talk about that BEFORE and AFTER difference in my basement floor after ONE night of work?

I spent last Tuesday night grinding down a high spot in my concrete slab, and the change was CRAZY. Before, I had this annoying 1/4 inch bump near the door that made the vinyl tile pop up every time. After about 3 hours with my angle grinder and a diamond cup wheel, the floor was dead flat. The difference was like night and day, and it only cost me $15 for the wheel at my local hardware store on Elm Street. Has anyone else fixed a lumpy slab this way, or did you just live with it?

2 comments

2 Comments

gray_perez5227d agoMost Upvoted

Whoa, yeah that dust is a total nightmare. I remember reading somewhere that you can hook a cheap dust hood or even a drywall shroud to the grinder if you're not wet grinding, but I've never tried it myself. Honestly, I just accepted the mess and ran a shop vac right next to the wheel the whole time, but it still gets everywhere no matter what. Sounds like you learned the hard way why people do the water trick instead, even if it's a sloppy mess to clean up.

the_derek1mo ago

Grind down that 1/4 inch bump and call it a night, huh? How did you manage to keep the dust from getting everywhere - did you wet grind or just suck it up with a shop vac? I'm asking because I tried the same thing in my garage last spring, but that fine concrete powder ended up floating into every single tool in my workshop and even settled on my car. You gotta tell me your secret because mine left a film on everything for weeks.