We have had a large amount of those "piss ants" in our kitchen since Spring. One day we wake up and find less than 10 the next day about 100. We cleared out the back of our house and found thy may have been living in where we keep our garden hose. We moved that and sprayed under the siding and it seemed to kill down about 75% of the issue. We are still getting them in the kitchen. Think that's just what's left over, or I wonder if there is another colony somewhere I haven't looked. Any ideas to keep them away?