[littlelady]

> dishwashers have to live at ground level

While less common in domestic kitchens, "raised" dishwashers are a thing. A friend of mine designed his dream kitchen and his dishwasher (just a standard domestic dishwasher) is at about hip height, next to the cabinets where dishes are stored and above the drawers that house heavier pots and pans.

[defrost]

That's a common professional setup, steel bench top with dishwasher with two side doors that both lift upwards at the same time.

Washers coarse sluice dishes and stack them in a circular rack on the bench, then use horizontal handle at front of washer to lift both the door on the left and the one on the right, the internal circular rack of freshly cleaned dishes is pulled out along the bench on one side, the just filled rack of dirty dishes is slid in on other side to replace, doors down, washer on, unstack clean dishes and move the empty rack back to the sink to start sluicing and stacking just arrived dirty dishes.

Repeat for three hours, then clean down kitchen and go home.