An out-of-round pipe has a cross section that is visibly flatter or wider in one direction. A sewer camera may suggest deformation, but the image angle can distort the view. Ask how the contractor confirmed the condition before relying on it to select a repair.
Find out how much pipe is affected
Request the location, length, and evidence for the deformation. Ask whether the camera could pass and whether the pipe has cracks, displaced joints, or other defects nearby. A short isolated change and a long flattened stretch can lead to different options.
Ask how the condition affects liner fit
A liner follows the shape of its host pipe. Have the contractor explain whether the existing shape leaves enough usable opening and how the finished result would be checked. If lining is unsuitable, ask what repair would address the deformation itself.
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