Arrived. Customer explained that her kitchen sink had been backing up and she was having issues with her toilet flushing. Upon inspection the kitchen sink would not back up and after running water for about 20 minutes it was still not back up. Customer was also having issues with toilet flushing. Flushed toilet 10 times and no back ups occurred and everything seems to be operating correctly. Recommended having her vent replaced under her sink and recommended having a new toilet installed