Tips & Warnings. 1  If you are cleaning an indoor concrete slab, wet it down thoroughly with a mop and plain water, then scrub with scrub brush. 2  Mix up an all-purpose cleaning solution, scrub the concrete, then rinse with a mop and clean water.
How to Repair Potholes in Dirt and Gravel Driveways - How to . Most potholes in dirt or gravel driveways are caused by water trapped below the surface, so be sure to maintain or improve the quality of underground drainage.
Driveway Pothole Repair Instructions. The first thing to check for is whether or not the pot hole goes past the bottom of the asphalt layer. If the hole goes deeper than the asphalt itself, you'll want to fill the hole with sand, gravel or dirt so the hole isn't quite as deep.