On Friday, May 26, 2017 at 11:20:58 PM UTC-5, Ed60062 wrote:
Today my wife was in the kitchen and black water came up through the sink drain. The faucet was off and no water was being used in other parts of the house. In fact, no one else was home at the time. No drains backed up in the basement or on the second floor. How could a first-floor kitchen drain back up when no water was running anywhere in the house? I could understand it if a basement drain had also backed up.

Did the backup alarm work properly? A small child could be injured or killed if the backup alarm isn't beeping and the sink backs over the child. ”Œ( à²*_à²*)”˜

[8~{} Uncle Flooded Monster