Local case study
Why Brighton's 2011 Sewage Backup Took a Source Hunt: The Case for Looking Before You Dig
In August 2011, CBS Colorado reported that sewage came up through vents, tubs and sinks in two Brighton, Colorado homes near 16th Avenue. A grinder on a shared line had backed up with blankets, slippers and pencils. One owner said sewage reached four inches deep in carpet within four hours.
That is an older story. It shows why the first job is finding where the blockage sits, since about 50 homes share that line.
Lesson: find the source of a backup before you clean up. A camera shows where. Read who owns which sewer pipe, or call the line and describe the problem.
