DuraWash
I was wondering what the bulbous thing was on the bottom of the PowerClean...and I suspected perhaps it as to create a seal on the bottom of the cone. I'd still love to see it in action.
Anyway, did the Durawash have the plastic lower wash arm with 10 jets? Five on each side, two of which on each side seem to provide direction and three going straight up. Except for the cone/tub on the top rack to provide the third wash level, this is exactly like the one that came with my townhome in 94 when it was new. Though there wasn't the tube on the top rack, at the top of the tub there was a deflector like nub directly above the tower. Anyway, it was a great dishwasher despite being loud. A piece of trim between the bottom of the door and the lower panel (short tub) was coming loose and I considered replacing it when it was about 12 years old, but a bit of super-blue took care of it. Then about four/five years ago I noticed that it sounded like the pump wasn't as "aggressive" sounding as usual so I started looking to replace it. I didn't know what the cause really was...until after I bought what I think was the last short-tub electronic Whirlpool. The interior of the new one is near identical except no cone, separate top wash arm, and silverware on the door. Same dispensers and all. After purchasing it, I was talking to a friend who is here on this board about the old dishwasher and after a few questions from him, we figured out that I was getting a lot of foam from glass measuring cups that I used for whey protein! He was right...I started pre-rinsing those a bit...and it worked as usual. Oh well, I've come to like the new one!