Sewer line inspections with digicam technology to diagnose root intrusion, cracks, and blockages with no invasive digging

https://www.mediafire.com/file/w3w1kdfco8n12rn/pdf-92387-83985.pdf/file

Sewer line inspections with digital camera know-how to diagnose root intrusion, cracks, and blockages with no invasive digging.