I just recently acquired a Haier HDT18PA countertop dishwasher. I know they have a horrible reputation, but this sucker does clean very, very well. I have fixed the leaks that cropped up, but I have noticed that the lower spray arm (I only have a lower, no upper Thank God!) gets stuck on the right hand rail at times. The damn spray arm is just a bit too long. Apparently it is designed to "wobble" on the shaft. The pressure from the jets pushes the arm down as it passes the railing. (I wonder if this is why this machine starts and stops several times when operating? To "unstick" the spray arm if it is stuck!)) Anyone have any experience with these? Any help is appreciated.