I woke up to my moisture sensor on the basement floor screaming this morning, and found this when I went to the basement. Same thing happened back in 2006 when the storm sewers couldn't handle the volume, and somehow the sanitary lines got involved. I got the test plug into the pipe and started vacuuming up the water. I figured there was about 75 gallons I vacuumed up, so now its off to the store to get a gallon of bleach to sanitize the floor...Mama is fresh out of it in the laundry room. Also need a new wingnut for the plug, as I broke off one side when tightening it. Maybe I'll just buy a new test plug since this one if over 30 years old.