Geelong Constuction Debris in sewer drain

Had a call today from a man in the Geelong suburb of Belmont with a blocked sewer drain , after asking him a few questions turned out he had had an onging problem every few years since the house was built 25 Years ago. We where able to clear the drain with the High Pressure Water Jet but i let him know that i felt it better to conduct a camera inspection to locate the source of reoccouring fault. The camera inspection located a large bit of concreate in the drain from when the house was built , we where luckly able to push it through to inspection shaft at rear then retrieve it from the drain. After 25 Years problem solved.