Jensownzoo
Songster
What kind do you use? I think for now I might get a bowl of sand from out back and make sure it's coarse enough until I can find something better.
You can get builder's sand where they sell landscaping supplies...often used in conjunction with paving stones. I got mine at Home Depot. If you're considering using sand in your coop/run you can buy it by the truckload like gravel.