When dishwasher is turned on, water fills in tub for about one minute (about a gallon of water), but then all of the water gets sucked out through the drain. When wash cycle begins, the spinning arm doesn't spin (it just gurgles) and the center "tower" that is supposed to rise up just gurgles too and won't move. It appears that it doesn't have enough water pressure to make the arm spin and wash the dishes. I have tried adding more water to the bottom of the tub right before the wash cycle to see if that boosts the water level/pressure enough to make the arm spin, but it just all gets sucked out through the drain, and I just get a lot of gurgling, but no washing!!! Is this perhaps a problem with the drain pump solenoid? Getting frustrated....and the dishes are piling up!