Hello. My GE Dishwasher Model PDW7300G00CC is not draining the water COMPLETELY. The d/w runs. The pump also runs. I disconnected the drain pipe from under the sink, and confirmed that water is getting pumped out. But at the end, there is still 1" of water sitting at the bottom of the d/w. I tried clearing the drain hole at the bottom of the d/w. I could not remove the 'inverted basket'. But I applied baking soda paste, followed by vinegar, and hot water. Tried 3 times. Still no improvement. What could be wrong? Please help.