I'm not sure of the history on this one, but it came to me that way. It ran fine when i tried it without water for a minute just to test it before I bought it. I took it off to clean it and thought it looked weird. Is it safe to use? The shape seems to be consistent all the way around. And the height looks identical to the straight one.
I never thought to put a separator in the dishwasher. I'm not one to like the idea of putting dirt in the dishwasher. Maybe I'm OCD about clean plates. I have always just brushed it off under running water. Even when I was a kid and we had a D3A with an aluminum separator.
Nicholas