David H Newtown , CT December 28, 2015 Appliance: General Electric Dishwasher PDW7880G00SS Ge Dishwasher Pdw7880g00ss: Pdw7880gooss broken main conduit connection to motor caused water to run right out of the bottom of dishwasher. How to replace Spray Arm Water Supply Tube. REPLACED MAIN CONDUIT AND WAS ABLE TO GET IT RUNNING A DAY BEFORE CHRISTMAS DUE TO YOUR EXPEDITED DELIVRY OPTIONS . Do-It-Yourself Rating: Repair Time Estimate: 15-30 minutes