@RSJB18 posted:I use the same stuff @trumptrain, Patrick. Cheap and readily available.
I use it for ground cover on the layout too.
Bob
For "cheap" I use washed sand from a local gravel supply place. They have at least 6+ varieties of washed sand (sandbox, driveway, brick filler, etc.) at $4-$6 per 80 Lb. bag.