SLOTS IN THE MAIN WASH CUP
I would keep an eye on how well that works as it looks like it may allow the detergent to wash out too soon. I would wait for the lid to open and see if your detergent is still there. KA tried this nonsense to improve rinsing on the later KD24 machines where they removed the det disp gasket from the lid of the DD at the factory. At first we thought they had just been left off, but then they told us that it had been done on purpose to solve other washability problems they were having. Then when the inside of the DWs starting developing a white film and the dishes had the same film on them they started selling us the gaskets that they removed and suggesting that they be installed.
But in any case I would keep a good eye on the DWs performance, however now that you have soft water it will probably be much better than the last one. I hate to sound like old timer but having had a TT KA DW and a TT WPDW and a TT GE DW installed in my kitchen I will never have one again. They just don't do the job that the standard machine does. Yesterday I installed two the the standard KM ultra DWs, we buy about a dozen per month and I guess when WP stops making them I will stop selling DWs and let it be someone else's headache
The frist one we installed replaced a 12 year old hi end black MT that leaked so long after the botched attempt at the RA dispenser recall that the motor was finally ruined. Good thing the customers kitchen was on a concert slab or the floor would have been destroyed. The 2nd KM UW DW we installed replaced a 1976 KDS-18 its a little tired and will get parted out and scraped, it does have nice brushed chrome panels on it if anyone wants to go SS with thier KD 18-23 DW let me know.