Robert R Hales Corners , WI December 11, 2018 Appliance: Whirlpool Undercounter Dishwasher WDF510PAYB2 Whirlpool Dishwasher Wdf510payb2 / : Sprayer not spraying holes were clogged. How to replace Middle Spray Arm. Replaced sprayer arm. 2 minute job. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes