I was going to tell you to do exactly what Keurig did. Hot water kills bugs instantly. Ants are irritating, but they won't make anyone sick or anything. Also, is there a trail of ants leading to and from it? If there are, they are taking water back to their home. You'll need to treat the source then. There are several safe safe methods. Google ants in kitchen or something like that and you'll get lots of hits.