Steve R West Branch , MI December 09, 2022 Appliance: Whirlpool Dishwasher WDF520PADB3 Whirlpool Dishwasher Wdf520padb3: Dishes not being cleaned well. How to replace Dishwasher Sump Filter. Changed the Sump and Pump Filters Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes