Robert R Trophy Club , TX February 01, 2016 Apparent poor performance of the center spray arm Replaced the "docking station" suspecting that the seals had just worn after a long time, especially the one for the center spray arm. Extremely quick and easy to replace the part, especially after looking at the little video. The seal was very worn and could feel the difference as soon as I pushed the top rack into position. Problem solved. 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes