I remember that Wash System.
Those machines could clean.... WOWZER !!!
We had a Mark 100 in 1970 with that same Wash System. You could load that machine to the gunwales with not pre rinsing and use the Short Wash Cycle and that load would come out Gleaming. Noisy ??? Absolutely. Every Dishwasher was back then but you knew they were throwing some water and they were running. Such a wonderful time in life.