Mark S Jefferson City , MO August 21, 2015 Appliance: Whirlpool Washer WTW6800WW1 Whirlpool Washer Wtw6800ww1: Was not pumping out the water. How to replace Drain Pump. Ordered a new pump and replaced it. To actually replace the pump only took about 15 minutes, but I had to take the wash machine into my garage so I could drain the water so total time took about an hour. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes