Don't be so fast to move out the 20 Patrician!
When I had mine, I would stand there with a 3 qt pitcher of hot water to add as soon as the purge between wash and rinse had finished filling. I would quickly add the water and it was enough to at least rinse the lower rack and completely drain before the rinse. If I did not do that, it would leave a fine white dust type film on everything. This was the first experience I had with fill, heat, throw hot water on cold dishes and take so much time doing it that the water in the lines cooled for the wash fill. As I remember, there was no heating delay to assure a 140F wash. You could start out with the Rinse-Hold to warm things, but that did not help the rinsing situation. I also found that I really noticed the absence of the constant rinse.
I hope you enjoy yours more than I did, but keep the Patrician handy to reinstall.