Robert K Lewisville , TX July 12, 2023 Appliance: Whirlpool Dishwasher WDTA50SAHZ0 Whirlpool Dishwasher Wdta50sahz0: Dishwasher leak. How to replace Lower Door Seal. The part from AppliancePartPros.com was perfect and I followed the associated video. While there are some differences in each dishwasher, the video guided me step by step to replace the lower door seal. I used a nut driver that was not magnetic; however, a magnetic nut driver would have made the job a lot easier. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes