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.
But if you're planting directly in the larger container, having gravel in the bottom is only a partial help to ensuring your plant's roots don't rot. But the key point to remember: gravel in the bottom of a pot with holes does absolutely no good in ensuring good drainage. That's because water naturally flows toward finer material, not away from it, so the large air spaces between the pieces of gravel don't pull the water into them.