I got myself into an odd duck that wore my sorry arse out. A guy has a garage that he's revamping. It's 40 by 50. He removed a bunch of interior walls and a loft so now it's one large space. One crack went wall to wall through the center, then six more going from the center crack out to the opposing outside walls. That plus dozens of chips and craters from drilled holes and nails that held the interior walls. There was also a deep spauld area probably from a battery. I hit it hard with baking soda and no bubbles at all. I brought in the hose and used my shop vac to suck out the baking soda mess, the hit it with a stiff wire brush in my drill to clean out the loose aggregate.Where did everyone go?
Finished on day 4, but I told him it would take me two. Last thing I did was vacuum the entire floor. Let's see..... walking backwards with the vac wand.... 40 passes, 50 feet long.... that's .....plain nuts