Marc L Merritt Island , FL February 23, 2023 Appliance: Whirlpool Washer - Direct Drive GHW9100LW1 Whirlpool Washer Ghw9100lw1: Spin/Drain cycle wouldn't drain all the water out of the tub.. How to replace Washer Drain Pump Assembly. Replaced the Washer Drain Pump. Very straightforward but difficult to access. Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes