On today’s visit the customer made me aware that he has had multiple issues with mainline stoppages since he moved in two months ago. The customer did have another company out here one month ago they claims they camera the line and ran into an obstruction that was possibly a backflow preventer. After that was performed the situation slightly improved but when the customer returned home and did a large load of laundry The water then again backed up. While I was on site approved looking for a backflow preventer with no luck but we did run a large load of laundry and there was definitely a slight back up at the clean out in front of garage. There is a floor clean out in the garage as well as a clean out behind the laundry sink. I will be sending our sewer specialist to camera the line as a courtesy to determine what the actual issue is. After all information is gathered with the sewer camera we will be able to provide multiple options and upfront pricing to resolve this issue for the cust