Remove any trash or debris in the crawl space.
Scoop up the sand with the shovel.
Pour the sand in piles about 1/2 to 1 foot high every 5 to 6 feet in the crawl space.
Brush the sand around the crawl space to create an even coat of sand all over the floor. Add more sand if needed. The sand coating should be about 1 to 2 inches thick.