When can a sewer camera not be used

A sewer line must be dry and free of any backup for a camera to be used. A sewer camera will not function properly or capture images properly if a sewer line is full of water . In some cases where only a portion of the pipe is damaged or backed up the camera can be pushed through and used. An example would be where only a small portion of a house sewer is back-pitched. The camera may be able to go through the back-pitched section and ensure that the rest of the line is in good working order.