James M Barre , MA November 07, 2016 Appliance: KitchenAid Undercounter Dishwasher KUDP02CRBL3 Kitchenaid Dishwasher Kudp02crbl3: Dishwashwer was only partially draining. How to replace Dishwasher Drain Hose. I figured out that it was probably a plugged pump hose, since the pump would run, it somtimes it drained and sometimes it didn't. Your video helped with how to take the dishwasher out and replace the hose. I replaced the hose and everything is now working fine. It turned out to be a broken check valve in the old hose that caused the problem. It took 90 mins to do the repair. 83 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours