James K Channahon , IL December 09, 2014 Appliance: Whirlpool Undercounter Dishwasher GU2500XTPB6 Whirlpool Dishwasher Gu2500xtpb6: The detergent dispenser was leaking the jet dry. How to replace Detergent Dispenser Assembly. I replaced the entire assembly. After watching the video it only took about fifteen minutes to change. 4 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes