We just bought a new Frigidaire Affinity 6700 front load washer, and it doesn't clean very well I'm afraid. How much water should this thing use? During wash and rinse cycles there is no discernable water level in the tub. I would have thought that the water should come up to the bottom of the window or something. Some water does run off the clothes as they tumble, but not very much. Is there something wrong with this thing?