Commercial sewer and drain cleaning. The whole kitchen grease line backed up prior to the grease trap. Water is standing in a 4” grease line. Pulled clean out furthest away from the grease trap and had to rod 2 times to get the line open and functional. Grease trap also needs to be serviced at this time, nd I will let Remy know. Everything is currently draining as expected, and the kitchen is operational again.