I asked one of the expereinced people at the Pro Desk is he knew anything about the variety of sands being sold in building Materials. Apperently, he knows a great deal about the products.
All Purpose Sand: 50 lbs., washed, $2.87
Tube Sand: 60 lbs., washed, $2.98 (same as All Purpose)
Play Sand:50 lbs., washed, $3.27
Commercial Grade Sand (same as Sandblasting Sand): 50 lbs., $4.34
He didn't know what these sand were washed with, whether there were any chemicals or not. I have used the All Purpose Sand and so far, after rinsing, there hasn't been any problems. I think that one could do their complete soil media shopping at a Home Depot or a Lowes. Sphagnum peat moss can be purchased in bales and dried LFS in small bags.