I learned to run it low enough that it disengages the tube motion. I get the same (I found better) results, less water use and it also gets rid of the noise. Mine is the 11X14 model, purchased many, many years ago. After reading criticisms of the unit in regard to the excess agitation, I spent some time checking alternate methods of operating it and settled on this. At one point, I dropped something on the outlet spigot that broke it off. I now let it trickle down the side of the unit from the outlet hole and it seems to work fine that way, too.