Pool Filter sand
Just a heads up - my Walmart has bags of PFS for a dollar!! They are out in the parking lot as they usually set it up every spring with all the various bags of top soil and humus and decorative stone and such.
There was no weight on the bag but the sign said .5 cubic feet. The bag was appx 24"x24"x4". The sand was a nice medium brown color - not to light like some pool filter sand can be. I'm certainly going to pick up a few bags to have on hand.
Hope you guys can find the same good deal!