A video camera allows for a visual inspection of underground sewer lines and other piping to determine the condition inside the pipe. A flexible rod with a specially designed, high-resolution video camera on its tip is inserted into the pipe for inspection. As the rod is pushed through the pipe, the waterproof camera records its progress and findings. Video images are transmitted to the camera operator and can be saved onto a videotape for a permanent record.
Video cameras may be used to identify damage and obstructions that inhibit proper flow or create occasional or repeated backups. The cameras also verify that obstructions have been removed and that the lines are clean following service. The condition of a line typically cannot be determined without a visual inspection using an in-line camera.
Video camera inspections pinpoint problems:
• Broken, cracked or collapsed pipe - damaged pipes requiring repair or replacement.
• Offset pipe - sewer pipes have become misaligned due to shifting soil, frozen ground, settling, etc.
• Blockage - grease buildup or a foreign object is restricting or prohibiting proper flow and/or cleaning of the line.
• Corrosion - the pipe has deteriorated and/or broken, causing collapses in the line and restricting flow.
• Bellied pipe - a section of the pipe has sunk due to ground or soil conditions, creating a valley that collects paper and waste.
• Leaking joints - the seals between pipes have broken, allowing water to escape into the area surrounding the pipe.
• Root infiltration - tree or shrub roots have invaded the sewer line, preventing normal cleaning and/or have damaged the line.
• Off-grade pipe — existing pipes are constructed of substandard material that may have deteriorated or corroded.