I have had this dishwasher in two different houses (two different machines) and both times, I have had the same problem. When I put the detergent in the little compartment on the inside of the door, it never opens during the wash. I finish a whole load, open it up, and it is still in there. I then have to put it in the bottom of the dishwasher, and do it again! I just wasted a lot of water! I started buying the detergent tabs to throw in the bottom in hopes that they would dissolve at a slower pace and perhaps do the same job as if it were released slowly though the door. All in all, I am pleased with the performance as long as I don't put the detergent in the door.