John H Bedford , IN February 13, 2022 Appliance: Whirlpool Dishwasher WDF750SAYB3 Whirlpool Dishwasher Wdf750sayb3: Very little water in dishwasher: Dirty dishes. How to replace Water Inlet Valve. The real problem was accumulated lime and sand blocking water flow through the valve inlet screen. Your troubleshooting guidelines failed to mention this possibility!!! 1 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes