Guess I better go buy some too. I was in the new house basement the other day and noticed sand on the floor near the "daylight" wall. What the H? I used a bunch of sand fill under the basement slab, and these little ants must be carrying it up through the crack between the slab and the foundation. What are they doing here? There's nothing to eat but concrete, painted drywall, and framing. Very strange.

Sg