I did, and it looks like it’s back to the drawing board.
Per instruction, I applied club soda (yes, you read that right) on several active mounds around my yard. I conducted the experiment on different days, kept track, even re-applied in a couple cases; but to no avail. Although the carbonated concoction seemed to agitate the ants, that’s about all it did. The mounds remained quite robust [see photo].
So, in the end, this pest management method turned out too good to be true ... at least in my yard. Perhaps I needed a higher proof beverage? Though it appeared my soda had plenty of pop. From now on, I’ll save the club soda for cocktails. Cheers.