Customer stated that she had an issue down in the basement just before the sewer ejector pump. There was a condensate drain that was that drains into just before the sewer ejector pump which had backed up and flooded some of the utility room. She stated she had previously mistakenly poured some plaster or white substance down the toilet, which shortly after had flooded the drain leading into ejector pump after running a laundry cycle when I arrived, I had ran the fixtures in the basement and found that the pump Had triggered on multiple times. I suggested to have a drain or camera tech come out and camera the line from the toilet all the way to the ejector pump to ensure no substance has hardened or ruined the drain line. Car attack is scheduled to come tomorrow to check condition.