Job Summary Report Client Concern: Upon arrival, the homeowner reported an ongoing issue involving the kitchen sink backing up whenever the washing machine is in use. The kitchen and laundry room are located back-to-back, indicating a shared drain line. Inspection Procedure: To diagnose the issue, I accessed the roof and ran approximately 60 feet of cable through the vent stack, passing the clean-out to clear any immediate obstructions. Following the cabling, I conducted a comprehensive video inspection (camera scoping) of the drain line from both the roof vent and the exterior clean-out. Findings: The camera inspection revealed several critical issues: Severe Deterioration of Cast Iron Piping: The existing cast iron drain lines are in poor structural condition, showing significant internal scaling, corrosion, and evidence of degradation that compromises flow. Multiple Bellies: Several low points (bellies) were observed in the line, where standing water collects. These bellies sig