Ryan O West Hartford , CT August 11, 2017 Appliance: Whirlpool Washer ITW4300SQ0 Whirlpool Washer Itw4300sq0: Water was not draining. How to replace Washer Drain Pump. I replaced the drain pump and the drain hose. The machine is working so much better! Don't get the rubber hoses. Get steel braided. Preferably the hose has a 90 degree bend. There are also ones with a safety stop in case the hose breaks. Do-It-Yourself Rating: Repair Time Estimate: 1-2 hours