Ted S Ashburn , VA January 19, 2018 Appliance: General Electric Dishwasher PDW7880J10SS Ge Dishwasher Pdw7880j10ss: I thought this was going to be easy peasy. How to replace Spray Arm Water Supply Tube. I was replacing the spray arms, water supply and the coarse filter. Like many others have said they were gunked-up with a thick layer of greasy food build up and dishes were not getting as clean as my wife wanted. The spray arms were a piece of cake as was the water supply tube. When I tried to remove the pump end of the water supply to replace the coarse filter line it turned but would not come free of the pump inlet gasket where it screwed in. I think I turned it 360 degrees counter clockwise about 10 times. I figured it was a bad clamp on the pump inlet so I removed the lower front panel of the dishwasher and the under counter screw mounts and pulled the machine from its nesting spot When I tilted the machine back the fitting to the pump was shredded by the clamp when I turned it so I had to replace that also. Very cramped space and it was hard for this 72 YO knees to get down and up a half dozen times. Once replaced, everything went back together quickly and the dish washer is like new. This was a GE Profile dishwasher that was 15 years old and it cleans like new. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: 2+ hours