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.
1. Spongy Bed. Don't even think of spreading gravel until you've prepared the ground where you'll be laying it. Building a driveway on soft soil that has roots, leaves, grass, weeds, and other type of debris creates a spongy surface that asks for trouble. You'll need to remove all topsoil, and strip the soil down to hard rock so you'll have a more dependable bed.