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) Hydraulic action flowing water pries rocks loose. 2) Solution flowing water may gradually dissolve some rock types or cements. 3) Abrasion-flowing water causes the stream channel bedrock to erode from impact with the sediment load (ex. potholes).