We do have mice around, so that's good to know. Water comes from the same source as our house water and is changed daily, so I'm not sure it would come in via that source, but mice could be a possibility...
Sounds like mice maybe the cause if they do end up testing positive for the bacteria.
Thanks so much for all of your help and info!
You're welcome. We're all here to help each other.
Why I love this site so much!
Thank you!
