Televised sewer from outside clean out. Heavy root ball near cast to clay blocking sewer. We rodded sewer line with a bent end then a 3" and 4" cutter blade. There is a heavy crack in the pipe before the cast to clay connection. We rodded and cleared the roots so the customer is running freely. Suggest installing a sewer liner approximately 21 ft long with a 4" transition into the 4" cast pipe to repair the pipes and keep the roots out.