Performing a CCTV inspection during obstruction testing is a crucial process to identify blockages within pipelines and drainage systems. This step-by-step guide will help technicians conduct effective inspections, ensuring accurate diagnosis and efficient resolution of issues.

Preparation Before Inspection

Before beginning the CCTV inspection, ensure all necessary equipment is available and in working condition. Prepare the site by clearing access points and informing relevant personnel about the inspection schedule. Safety precautions, such as wearing protective gear, should also be observed.

Gather Required Equipment

  • CCTV inspection camera with flexible cable
  • Lighting and recording devices
  • Cleaning tools for pipeline preparation
  • Personal protective equipment (PPE)

Initial Site Inspection

Conduct a visual inspection of the access points to ensure they are clear and accessible. Remove any debris or obstructions that might hinder the camera's movement. Confirm the condition of the pipeline and note any visible damages or existing blockages.

Performing the CCTV Inspection

Follow these steps to perform the CCTV inspection effectively:

  • Insert the camera into the pipeline carefully, ensuring it is properly connected and powered.
  • Slowly advance the camera through the pipe, monitoring the live feed on the display.
  • Record the video footage for later analysis, paying attention to any signs of obstructions or damage.
  • Use the camera's lighting features to improve visibility in dark or poorly lit sections.

Identifying Obstructions

Observe the live feed for signs of blockages, such as debris, roots, or buildup. Take note of the location and nature of each obstruction for targeted removal. If necessary, perform multiple passes to ensure full inspection coverage.

Post-Inspection Procedures

After completing the inspection, carefully withdraw the camera and review the recorded footage. Document findings and prepare a report outlining the identified issues. Plan the appropriate cleaning or repair procedures based on the inspection results.

Cleaning and Maintenance

  • Remove debris or roots identified during inspection.
  • Perform flushing or chemical cleaning if necessary.
  • Inspect the pipeline for damages and schedule repairs if needed.

Regular CCTV inspections can help maintain pipeline integrity and prevent major blockages. Proper documentation and timely maintenance are key to effective obstruction management.