Rick H Seguin , TX April 17, 2025 Appliance: Whirlpool Commercial Washer CHW8990CW0 Whirlpool Washer Chw8990cw0: The washer won't drain. How to replace Water Pump. Replaced the water pump and everything seems to work fine now. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes